Rubia, R. O. (2007). A history of growth of the shipping industry and the development of the Port Area of Cebu before the American era. Journal of History.
Chicago-viite (17. p.)Rubia, Roquezon O. "A History of Growth of the Shipping Industry and the Development of the Port Area of Cebu Before the American Era." Journal of History 2007.
MLA-viite (9. p.)Rubia, Roquezon O. "A History of Growth of the Shipping Industry and the Development of the Port Area of Cebu Before the American Era." Journal of History, 2007.
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