Diaz, C. (2001). Website mktg firms engaged in pyramiding - DTI. Philippine Star.
Chicagoスタイル(17版)引用形式Diaz, Conrado. "Website Mktg Firms Engaged in Pyramiding - DTI." Philippine Star 2001.
MLA(9版)引用形式Diaz, Conrado. "Website Mktg Firms Engaged in Pyramiding - DTI." Philippine Star, 2001.
警告: この引用は必ずしも正確ではありません.