Al Turaif، F. S.، و Koskina، A. (2011). The Role of Training and Development Programmes for Improving the Performance and Commitment of Front-Line Workers in A Saudi Telecom Company (رسالة ماجستير غير منشورة). Keele University، كيل. مسترجع من http://search.mandumah.com/Record/605473
Al Turaif، Faten Saleh، و Aikaterini Koskina. "The Role of Training and Development Programmes for Improving the Performance and Commitment of Front-Line Workers in A Saudi Telecom Company" رسالة ماجستير. Keele University، كيل، 2011. مسترجع من http://search.mandumah.com/Record/605473