Caceres, M. V. P. (2014). The Sulu sultanate: Foreign relations, contacts and collaboration with other Asian kingdoms. Tambara.
Lua i Stíl Chicago (17ú heag.)Caceres, Michael Vincent P. "The Sulu Sultanate: Foreign Relations, Contacts and Collaboration with Other Asian Kingdoms." Tambara 2014.
Lua MLA (9ú heag.)Caceres, Michael Vincent P. "The Sulu Sultanate: Foreign Relations, Contacts and Collaboration with Other Asian Kingdoms." Tambara, 2014.
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