Sy, M. (2004). GMA to PMA grads: Don't weaken democracy. Philippine Star.
芝加哥风格引文Sy, Marvin. "GMA to PMA Grads: Don't Weaken Democracy." Philippine Star 2004.
MLA引文Sy, Marvin. "GMA to PMA Grads: Don't Weaken Democracy." Philippine Star, 2004.
警告：这些引文格式不一定是100％准确.