Binkhulef، N. S.، و Christy، G. (2011). An investigation of the effectiveness into the current performance appraisal schemes at the Ministry of Water and Electricity in the Kingdom of Saudi Arabia (رسالة ماجستير غير منشورة). University of Portsmouth، بورتسموث. مسترجع من http://search.mandumah.com/Record/613554
Binkhulef، Nabil Saad، و Gill Christy. "An Investigation of the Effectiveness Into the Current Performance Appraisal Schemes At the Ministry of Water and Electricity in the Kingdom of Saudi Arabia" رسالة ماجستير. University of Portsmouth، بورتسموث، 2011. مسترجع من http://search.mandumah.com/Record/613554