Asain, C. A. (2013). Cultural and historical sites and landmarks in Sulu and Tawi-tawi. Journal of History.
Citazione stile Chigago Style (17a edizione)Asain, Calbi A. "Cultural and Historical Sites and Landmarks in Sulu and Tawi-tawi." Journal of History 2013.
Citatione MLA (9a ed.)Asain, Calbi A. "Cultural and Historical Sites and Landmarks in Sulu and Tawi-tawi." Journal of History, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.