Skvortsova, Svitlana, and Tetiana Britskan. “Organization of Mathematical Distance Learning in Primary School”. International Journal of Research in E-learning 7, no. 1 (June 24, 2021): 1–23. Accessed May 6, 2025. https://trrest.vot.pl/ojsus/index.php/IJREL/article/view/10032.