Sarangani, D. D. A. (1977). Islamic penetration in Mindanao and Sulu: A preliminary study. University Research Center, Mindanao State University.
Citace podle Chicago (17th ed.)Sarangani, Datumanong Di. A. Islamic Penetration in Mindanao and Sulu: A Preliminary Study. Marawi City: University Research Center, Mindanao State University, 1977.
Citace podle MLA (9th ed.)Sarangani, Datumanong Di. A. Islamic Penetration in Mindanao and Sulu: A Preliminary Study. University Research Center, Mindanao State University, 1977.
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