Cal, B. (2009). Sulu as a tourist heaven? an ambitious resort project may yet change the island's image. Manila Bulletin.
Citace podle Chicago (17th ed.)Cal, Ben. "Sulu as a Tourist Heaven? an Ambitious Resort Project May yet Change the Island's Image." Manila Bulletin 2009.
Citace podle MLA (9th ed.)Cal, Ben. "Sulu as a Tourist Heaven? an Ambitious Resort Project May yet Change the Island's Image." Manila Bulletin, 2009.
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