Agaton, C. B., & Cueto, L. J. (2021). Learning at home: Parents’ lived experiences on distance learning during COVID-19 pandemic in the Philippines. International Journal of Evaluation and Research in Education, 10(3), 901–911. https://doi.org/10.11591/ijere.v10i3.21136

Akar, S. S., & Erden, M. K. (2021). Distance education experiences of secondary school math teacher during the pandemic: A narrative study. Turkish Online Journal of Distance Education, 22(3), 1–20. https://dergipark.org.tr/tr/download/article-file/1857612

Armah, S. E., Akayuure, P., & Armah, R. B. (2021). A comparative study of male and female distance learners’ mathematics achievement. Contemporary Mathematics and Science Education, 2(1), ep21001. https://doi.org/10.30935/conmaths/9288

Barlovits, S., Jablonski, S., Lazaro, C., Ludwig, M., & Recio, T. (2021). Teaching from a distance-Math lessons during COVID-19 in Germany and Spain. Education Sciences, 11(406), 1–17. https://doi.org/10.3390/educsci11080406

Benavides-lahnstein, A. I., & Ryder, J. (2019). School teachers’ conceptions of environmental education: Reinterpreting a typology through a thematic analysis. Environmental Education Research, 26(1), 43–60 https://doi.org/10.1080/13504622.2019.1687649

Bot, T. D. (2021). Bearing/distance problems in mathematics: Teachers’ construction efficacy in the secondary school in Plateau State, Nigeria. European Journal of Mathematics and Science Education, 6(1), 35-45. https://doi.org/10.12973/ejmse.2.1.35

Breiger, R. L. (1995). Social structure and the phenomenology of attainment. Annual Review of Sociology, 21(1), 115–136. https://doi.org/10.1146/annurev.so.21.080195.000555  

Brown, A., & Danaher, P. A. (2019). CHE principles: Facilitating authentic and dialogical semi-structured interviews in educational research. International Journal of Research & Method in Education, 42(1), 76–90. https://doi.org/10.1080/1743727X.2017.1379987  

Cevikbas, M., & Kaiser, G. (2020). Flipped classroom as a reform‑oriented approach to teaching mathematics. ZDM-Mathematics Education, 52(7), 1291–1305. https://doi.org/10.1007/s11858-020-01191-5  

Chirinda, B., Ndlovu, M., & Spangenberg, E. (2021). Teaching mathematics during the covid-19 lockdown in a context of historical disadvantage. Education Sciences, 11(4), 177. https://doi.org/10.3390/educsci11040177

Clark-Wilson, A., Robutti, O., & Thomas, M. (2020). Teaching with digital technology. ZDM-Mathematics Education, 52(7), 1223–1242. https://doi.org/10.1007/s11858-020-01196-0

Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (5th ed.). Sage Publication, Inc. https://id1lib.org/book/3700358/d95149

Dalkin, S., Forster, N., Hodgson, P., Lhussier, M., & Car, S. M. (2020). Using computer assisted qualitative data analysis software (CAQDAS; NVivo) to assist in the complex process of realist theory generation, refinement and testing. International Journal of Social Research Methodology, 24(1), 123–134. https://doi.org/10.1080/13645579.2020.1803528

Davis, N. L., Gough, M., & Taylor, L. L. (2019). Online teaching: Advantages, obstacles and tools for getting it right. Journal of Teaching in Travel & Tourism, 19(3), 256–263. https://doi.org/10.1080/15313220.2019.1612313

Demir, E., & Demir, C. G. (2021). Investigation of parents’ opinions about distance education during the COVID-19 pandemic. Turkish Online Journal of Distance Education, 22(2), 42–57. https://doi.org/10.17718/tojde.906485  

Engelbrecht, J., Borba, M. C., Llinares, S., & Kaiser, G. (2020). Will 2020 be remembered as the year in which education was changed? ZDM-Mathematics Education, 52(5), 821–824. https://doi.org/10.1007/s11858-020-01185-3

Engelbrecht, J., Llinares, S., & Borba, M. C. (2020). Transformation of the mathematics classroom with the internet. ZDM-Mathematics Education, 52(5), 825–841. https://doi.org/10.1007/s11858-020-01176-4  

Esposito, A. (2012). Research ethics in emerging forms of online learning: Issues arising from a hypothetical theoretical study on a MOOC. Electric Journal of E-Learning, 10(3), 315–325. https://files.eric.ed.gov/fulltext/EJ985433.pdf

Finkelstein, S., Sharma, U., & Furlonger, B. (2019). The inclusive practices of classroom teachers: A scoping review and thematic analysis. International Journal of Inclusive Education, 25(6), 735–762. https://doi.org/10.1080/13603116.2019.1572232

Frolova, E. V., Rogach, O. V., Tyurikov, A. G., & Razov, P. V. (2021). Online student education in a pandemic: New challenges and risks. European Journal of Contemporary Education, 10(1), 43–52. https://doi.org/10.13187/ejced.2021.1.43   

Gann, C., & Carpenter, D. (2017). STEM educational activities and the role of the parent in the home education of high school students. Educational Review, 71(2), 166-181. https://doi.org/10.1080/00131911.2017.1359149   

Hadriana, Mahdum, Isjoni, Futra, D., & Primahardani, I. (2021). Online learning management in the era of COVID-19 pandemic at junior high school in Indonesia. Journal of Information Technology Education: Research, 20, 351–383. https://doi.org/10.28945/4819

Hamaidi, D. A., Arouri, Y. M., Noufa, R. K., & Aldrou, I. T. (2021). Parents’ perceptions of their children’s experiences with distance learning during the COVID-19 pandemic. International Review of Research in Open and Distance Learning, 22(2), 224–241. https://doi.org/10.19173/irrodl.v22i2.5154

Kalogeropoulos, P., Roche, A., Russo, J., Vats, S., & Russo, T. (2021). Learning mathematics from home during COVID-19: Insights from two inquiry-focussed primary schools. Eurasia Journal of Mathematics, Science and Technology Education, 17(5), 1–16. https://doi.org/10.29333/ejmste/10830

Kamanetz, A. (2020). ‘Panic-gogy’: Teaching online classes during the coronavirus pandemic. Npr. https://n.pr/3ENAKV7  

Lawshe, C. H. (1975). A quantitative approach to content validity. Personnel Psychology, 28, 563–575. https://doi.org/10.1111/J.1744-6570.1975.TB01393.X

Le, D.-L., Giang, T.-V., & Ho, D.-K. (2021). The impact of the COVID-19 pandemic on online learning in higher education: A Vietnamese Case. European Journal of Educational Research, 10(4), 1683–1695. https://doi.org/10.12973/eu-jer.10.4.1683

Mailizar, Almanthari, A., Maulina, S., & Bruce, S. (2020). Secondary school mathematics teachers’ views on e-learning implementation barriers during the COVID-19 pandemic: The case of Indonesia. Eurasia Journal of Mathematics, Science and Technology Education, 16(7), 1-9. https://doi.org/10.29333/EJMSTE/8240

Marfuah, M., Suryadi, D., Turmudi, T., & Isnawan, M. G. (2022). Providing online learning situations for in-service mathematics teachers’ external transposition knowledge during COVID-19 pandemic: Case of Indonesia. Electronic Journal of e-Learning, 20(1), 69-84. https://doi.org/10.34190/ejel.20.1.2388

Megatsari, H., Dwi, A., Ibad, M., Tri, Y., Putri, K., Ardiansyah, R., Geno, P., & Nugraheni, E. (2020). The community psychosocial burden during the COVID-19 pandemic in Indonesia. Heliyon, 6(10), e05136. https://doi.org/10.1016/j.heliyon.2020.e05136

Morrison, D., Lichtenwald, K., & Tang, R. (2019). Extending the online focus group method using web-based conferencing to explore older adults online learning. International Journal of Research & Method in Education, 43(1), 78-92. https://doi.org/10.1080/1743727X.2019.1594183  

Özüdoğru, G. (2021). Problems faced in distance education during COVID-19 pandemic. Participatory Educational Research, 8(4), 321–333. https://doi.org/10.17275/per.21.92.8.4

Palacios, E. B., & Simons, M. (2021). Can I take a look at your notes?: A phenomenological exploration of how university students experience note-taking using paper-based and paperless resources. Educational Philosophy and Theory, 53(13), 1334-1349. https://doi.org/10.1080/00131857.2021.1876667

Paulus, T., Woods, M., Atkins, D. P., & Macklin, R. (2015). The discourse of QDAS: Reporting practices of ATLAS.ti and NVivo users with implications for best practices. International Journal of Science Research Methodology, 20(1), 35–47. https://doi.org/10.1080/13645579.2015.1102454

Pepin, B. (2021). Connectivity in support of student co-design of innovative mathematics curriculum trajectories. ZDM-Mathematics Education, 53, 1221-1232. https://doi.org/10.1007/s11858-021-01297-4    

Pigden, L., & Jegede, F. (2019). Thematic analysis of the learning experience of joint honours students: Their perception of teaching quality, value for money and employability and employability. Studies in Higher Education, 45(8), 1650-1663. https://doi.org/10.1080/03075079.2019.1661985

Reflianto, Setyosari, P., Kuswandi, D., & Widiati, U. (2021). Reading comprehension skills: The effect of online flipped classroom learning and student engagement during the COVID-19. European Journal of Economics, Finance and Administrative Sciences, 10(4), 1613–1624. https://doi.org/10.12973/eu-jer.10.4.1613

Reimers, F., Schleicher, A., & Saavedra, J. (2020). Supporting the continuation of teaching and learning during the COVID-19 pandemic: Annotated resources for online learning. OECD. https://bit.ly/3gbqEmY  

Richard, K. A. R., & Hemphill, M. A. (2018). A practical guide to collaborative qualitative data analysis. Journal of Teaching Physical, 37(2), 225–231. https://doi.org/10.1123/jtpe.2017-0084

Roberts, L. D., & Allen, P. J. (2015). Exploring ethical issues associated with using online surveys in educational research. Educational Research and Evaluation, 21(2), 95–108. https://doi.org/10.1080/13803611.2015.1024421

Salehudin, M., Nasir, M., Hamzah, S. H., Toba, R., Hayati, N., & Safiah, I. (2021). The users’ experiences in processing visual media for creative and online learning using Instagram. European Journal of Educational Research, 10(4), 1669–1682. https://doi.org/10.12973/eu-jer.10.4.1669  

Sarama, J., & Clements, D. H. (2009). Early childhood mathematics education research: Learning trajectories for young children. Routledge. https://doi.org/10.4324/9780203883785

Scharp, K. M., & Sanders, M. L. (2018). What is a theme? Teaching thematic analysis in qualitative communication research methods. Communication Teacher, 33(2), 117–121. https://doi.org/10.1080/17404622.2018.1536794  

Soloveva, R. A., Barakhsanov, V. P., Batorov, A. R., Kibalnik, A. V., & Moskalyonova, N. A. (2020). Internet e ingenieros potenciales: Análisis de resultados para estudios realizados durante la pandemia [The internet and prospective engineers: Results analysis for studies conducted during the pandemic]. Journal of Educational Psychology, 8(3), e714. https://doi.org/10.20511/pyr2020.v8nSPE3.714

Stolz, S. A. (2013). Phenomenology and physical education. Educational Philosophy and Theory, 45(9), 949–962. https://doi.org/10.1080/00131857.2013.785355

Stolz, S. A. (2020). Phenomenology and phenomenography in educational research: A critique. Educational Philosophy and Theory, 52(10), 1077–1096. https://doi.org/10.1080/00131857.2020.1724088

Tal, C., Tish, S., & Tal, P. (2022). Parental perceptions of their preschool and elementary school children with respect to teacher-family relations and teaching methods during the first COVID-19 lockdown. Pedagogical Research, 7(1), em0114. https://doi.org/10.29333/pr/11518

Tall, D. (2004). Building theories: The three worlds of mathematics. For the Learning of Mathematics, 24(1), 29–32. http://www.jstor.org/stable/40248444

Tall, D. (2006). A theory of mathematical growth through embodiment, symbolism and proof. Annales de Didactique et de Sciences Cognitive, 11, 195-215. https://bit.ly/3eMk3yA

Tall, D. (2008). The transition to formal thinking in mathematics. Mathematics Education Research Journal, 20(2), 5–24. https://doi.org/10.1007/BF03217474

Van-Lancker, W., & Parolin, Z. (2020). COVID-19, school closures, and child poverty: A social crisis in the making. The Lancet Public Health, 5(5), 243-244. https://doi.org/10.1016/S2468-2667(20)30084-0

Wijaya, A., Retnawati, H., Setyaningrum, W., Aoyama, K., & Sugiman. (2019). Diagnosing students’ learning difficulties in the eyes of Indonesian mathematics teachers. Journal on Mathematics Education, 10(3), 357–364. https://doi.org/10.22342/jme.10.3.7798.357-364

Zhou, L., Li, F., Wu, S., & Zhou, M. (2020). “School’s out, but class’s on”, the largest online education in the world today: Taking China’s practical exploration during the COVID-19 Epidemic prevention and control as an example. Best Evidence in Chinese Education, 4(2), 501–519. https://doi.org/10.15354/bece.20.ar023