Al Olet، A. A. E. S.، و Wallace، D. M. (1991). Cultural Issues as an Approach to Forming and Managing the Future Neighbourhoods Case Study: The Central Region of Saudi Arabia (رسالة دكتوراه غير منشورة). University of Strathclyde، غلاسكو. مسترجع من http://search.mandumah.com/Record/602086
Al Olet، Ahmed Abd Elkarim S.، و David M. Wallace. "Cultural Issues As an Approach to Forming and Managing the Future Neighbourhoods Case Study: The Central Region of Saudi Arabia" رسالة دكتوراه. University of Strathclyde، غلاسكو، 1991. مسترجع من http://search.mandumah.com/Record/602086