Mula, Richard S. “Learners’ Level of Difficulty in Using Mother Tongue-Based Instruction on Mathematics and Metrobank-MTAP-DepEd Math Challenge”. International Journal of Multidisciplinary: Applied Business and Education Research 6, no. 3 (March 23, 2025): 1056–1067. Accessed February 12, 2026. https://ijmaberjournal.org/index.php/ijmaber/article/view/2185.