Badr, Gamal Moursi (Spring, 1978), "Islamic Law: Its Relation to Other Legal Systems", The American Journal of Comparative Law, 26 (2 - Proceedings of an International Conference on Comparative Law, Salt Lake City, Utah, February 24–25, 1977): 187–198 [196–8], doi:10.2307/839667Check date values in: |date= (bantuan)
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Badr, Gamal Moursi (Spring, 1978), "Islamic Law: Its Relation to Other Legal Systems", The American Journal of Comparative Law, 26 (2 - Proceedings of an International Conference on Comparative Law, Salt Lake City, Utah, February 24–25, 1977): 187–198 [196–8], doi:10.2307/839667Check date values in: |date= (bantuan)