7Bemardin, H. J. & Batty R. W. (1984).Performance Appraisal: Assessing . Human Behavior at work. Kent Publishers.
8Campbell, J.P., McCloy, R.A., Oppler, S.H. & Sager,C.E.(1993). A Theory of Performance, In N. Schmitt. & Borman, W.C. (Eds.), Personnel Selection in Organizations. SanFraneiseo: Jossey-Bass Publishers.
9Borman,W.C.& Motowidlo, S.J.(1993). Expanding the criterion aomain to include elements of contextual performance [A]. In N. Schmitt, & Borman W. C. (Eds.), personnel Selection in Organizations. SanFraneiseo: Jossey-Bass Publishers.