Estopace, E. E. (2001). Make way for world's first mobile instant messengers. Philippine Star.
Chicagoスタイル(17版)引用形式Estopace, Eden Enano. "Make Way for World's First Mobile Instant Messengers." Philippine Star 2001.
MLA(9版)引用形式Estopace, Eden Enano. "Make Way for World's First Mobile Instant Messengers." Philippine Star, 2001.
警告: この引用は必ずしも正確ではありません.