Barra, H. A. (1989). Islamic concept of extension education. King Faisal Center for Islamic and Arabic Studies, Mindanao State University.
Chicago-Zitierstil (17. Ausg.)Barra, Hamid Aminoddin. Islamic Concept of Extension Education. Marawi City: King Faisal Center for Islamic and Arabic Studies, Mindanao State University, 1989.
MLA-Zitierstil (9. Ausg.)Barra, Hamid Aminoddin. Islamic Concept of Extension Education. King Faisal Center for Islamic and Arabic Studies, Mindanao State University, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.