Handayani, Susi, and Lailan Safina Hasibuan. “The Analysis of Job Stress Effect to the Improvement of PT Bank Muamalat Indonesia, TBK Medan Balai Kota Branch’s Employees Performance”. International Journal of Social Sciences and Humanities Invention 5, no. 9 (September 30, 2018): 4978–4981. Accessed November 3, 2024. http://valleyinternational.net/index.php/theijsshi/article/view/1163.