R. Yusuf, E. Tamam, J. Bolong, and M. N. Osman, “Perilaku Membisu dalam kalangan Pekerja Malaysia di Organisasi Jerman: Satu Kajian Rintis: Silence Behavior among Malaysian Employees in German Organizations: A Pilot Study”, PERS, vol. 7, no. 2, pp. 15–25, Nov. 2015, Accessed: Dec. 05, 2025. [Online]. Available: https://ejournal.upsi.edu.my/index.php/PERS/article/view/1704