Dowling، C. (1990). Overview of the results of the Bethlehem university community studies and socio-economic survey: A synthesis of the preliminary reports. مجلة جامعة بيت لحم، مج9, ع9 ، 45 - 79. مسترجع من http://search.mandumah.com/Record/656474
Dowling، Colette. "Overview of the Results of the Bethlehem University Community Studies and Socio-economic Survey: A Synthesis of the Preliminary Reports." مجلة جامعة بيت لحم مج9, ع9 (1990): 45 - 79. مسترجع من http://search.mandumah.com/Record/656474