Al Amro، Z.، و Stewart، A. (2009). To What Extent Does the Use of Value Management Methodology in Engineering Improve the Management of Construction Projects in Saudi Arabia (رسالة ماجستير غير منشورة). University of Portsmouth، بورتسموث. مسترجع من http://search.mandumah.com/Record/688111
Al Amro، Ziyad، و Ann Stewart. "To What Extent Does the Use of Value Management Methodology in Engineering Improve the Management of Construction Projects in Saudi Arabia" رسالة ماجستير. University of Portsmouth، بورتسموث، 2009. مسترجع من http://search.mandumah.com/Record/688111