Decasa, G. C. (1999). The qur'anic concept of umma and its function in Philippine Muslim society. Pontificia Università Gregoriana.
Chicago Style (17th ed.) CitationDecasa, George C. The Qur'anic Concept of Umma and Its Function in Philippine Muslim Society. Roma: Pontificia Università Gregoriana, 1999.
MLA (9th ed.) CitationDecasa, George C. The Qur'anic Concept of Umma and Its Function in Philippine Muslim Society. Pontificia Università Gregoriana, 1999.
Warning: These citations may not always be 100% accurate.