Alia Rizvi, Nighat G. Ansari. PERCEIVED EFFECTIVENESS OF PERFORMANCE MANAGEMENT SYSTEM AND ORGANIZATIONAL CITIZENSHIP BEHAVIOUR: MEDIATING ROLE OF PSYCHOLOGICAL CONTRACT . GMR [Internet]. 2026 Apr. 23 [cited 2026 Jun. 10];4(02). Available from: https://gmr.ias.edu.pk/index.php/gmr/article/view/65