fadillah ismail, “Faktor penglibatan dan penghalang dari menyertai kesatuan sekerja”, hsp, vol. 2, no. 2, pp. 7–18, Dec. 2022, Accessed: May 04, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/hsp/article/view/9273