Amiruddin MH, Sumarwati S, Amat K. The Impact of Problem-Based Learning (PBL) on Student Achievement in Engineering Subject Material at Vocational College Kuantan, Pahang . oj-tp. 2021;6(1):1-6. Accessed August 12, 2026. https://journal.uthm.edu.my/index.php/oj-tp/article/view/6694