Decasa, G. C. (1999). The qurʾānic concept of umma and its function in Philippine Muslim society. Interreligious and intercultural investigations.
Chicago Style (17th ed.) CitationDecasa, George C. "The Qurʾānic Concept of Umma and Its Function in Philippine Muslim Society." Interreligious and Intercultural Investigations 1999.
MLA (8th ed.) CitationDecasa, George C. "The Qurʾānic Concept of Umma and Its Function in Philippine Muslim Society." Interreligious and Intercultural Investigations, 1999.
Warning: These citations may not always be 100% accurate.