Lacsamana, Sarah. “EVALUATING THE EFFECTIVENESS OF PROFESSIONAL DEVELOPMENT PROGRAMS FOR MATHEMATICS TEACHERS IN THE PHILIPPINES”. Excellencia: International Multi-disciplinary Journal of Education (2994-9521) 2, no. 9 (November 29, 2024): 640–644. Accessed November 9, 2025. https://multijournals.org/index.php/excellencia-imje/article/view/2452.