Al Jumah، A. A.، و Kindly، R. S. (2011). The Motivating System Of Performance Related Pay in The Saudi Electric Company Does It Increase Employees Performance (رسالة ماجستير غير منشورة). Keele University، كيل. مسترجع من http://search.mandumah.com/Record/687138
Al Jumah، Abd Alsalam، و Roger Seifert Kindly. "The Motivating System Of Performance Related Pay in The Saudi Electric Company Does It Increase Employees Performance" رسالة ماجستير. Keele University، كيل، 2011. مسترجع من http://search.mandumah.com/Record/687138