Philippines Department of Tourism. (2006). Davao Region situationer 2006. Department of Tourism Region XI.
Cita Chicago (17th ed.)Philippines Department of Tourism. Davao Region Situationer 2006. Davao City: Department of Tourism Region XI, 2006.
Cita MLA (9th ed.)Philippines Department of Tourism. Davao Region Situationer 2006. Department of Tourism Region XI, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.