Dela Cruz, R. (2006). Duka Bay: An ecological business paradigan. Philippine Star.
Chicagoスタイル(17版)引用形式Dela Cruz, Rose. "Duka Bay: An Ecological Business Paradigan." Philippine Star 2006.
MLA(9版)引用形式Dela Cruz, Rose. "Duka Bay: An Ecological Business Paradigan." Philippine Star, 2006.
警告: この引用は必ずしも正確ではありません.