Ong, Tze Ching, Tengku Mohamad Amer Tengku Mohamad Nazili, and Chee Sern Lai. 2021. “Faktor-Faktor Yang Mempengaruhi Keterlibatan Pelajar Bidang Teknologi Kimpalan Dalam Ko-Kurikulum Di Kolej Vokasional: Factors That Influence Welding Technology Students’ Involvement in Co-Curriculum at Vocational College”. Online Journal for TVET Practitioners 6 (2): 80-90. https://penerbit.uthm.edu.my/ojs/index.php/oj-tp/article/view/9530.