APA aipamena

Demate, C. J. M., & Yap, V. (2010). Determinants of the sustainability of duty free shops in clark freeport zone. University of the Philippines Diliman Extension Program in Pampanga.

Chicago Style aipamena

Demate, Cielo Jane M., and Virginia Yap. Determinants of the Sustainability of Duty Free Shops in Clark Freeport Zone. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2010.

MLA aipamena

Demate, Cielo Jane M., and Virginia Yap. Determinants of the Sustainability of Duty Free Shops in Clark Freeport Zone. University of the Philippines Diliman Extension Program in Pampanga, 2010.