Katigbak, A. F. (2004). College Assurance Plan: What's the real score? Philippine Star.
芝加哥风格引文Katigbak, Antonio F. "College Assurance Plan: What's the Real Score?" Philippine Star 2004.
MLA引文Katigbak, Antonio F. "College Assurance Plan: What's the Real Score?" Philippine Star, 2004.
警告：这些引文格式不一定是100％准确.