Qassem، A.، و Marwa، S. (2012). Critical Success Factors for Implementing ISO 9001: 2008 QMS in the Medical Devices Sector at the Headquarters of the Saudi Food and Drug Authority (رسالة ماجستير غير منشورة). University of Portsmouth، بورتسموث. مسترجع من http://search.mandumah.com/Record/604059
Qassem، Ahmad، و Simmy Marwa. "Critical Success Factors for Implementing ISO 9001: 2008 QMS in the Medical Devices Sector at the Headquarters of The Saudi Food and Drug Authority " رسالة ماجستير. University of Portsmouth، بورتسموث، 2012. مسترجع من http://search.mandumah.com/Record/604059