Qohar, Abd, and Shima Kunaza Fazira. “Student Mathematical Communication in Online Discussion in Introduction to Geometry Course Using Edmodo”. Journal of Education Research and Evaluation 6, no. 4 (December 14, 2022): 576–585. Accessed July 17, 2024. https://ejournal.undiksha.ac.id/index.php/JERE/article/view/51241.