Camuyong, Christian Sam F. “Development, Validation and Effectiveness of Instructor- Made Learning Course Material (LCM)”. International Journal of Multidisciplinary: Applied Business and Education Research 4, no. 2 (February 17, 2023): 439–445. Accessed April 19, 2026. https://www.ijmaberjournal.org/index.php/ijmaber/article/view/751.