Aksan, Jainalyn Annong. “Effect of Modular Distance Learning Approach to Academic Performance in Mathematics of Students in Mindanao State University-Sulu Senior High School Amidst COVID-19 Pandemic”. Open Access Indonesia Journal of Social Sciences 4, no. 4 (June 18, 2021): 445-467. Accessed August 9, 2025. https://journalsocialsciences.com/index.php/oaijss/article/view/64.