Gatdula, D. (1999). SSS eyes new types of investment. Philippine Star.
芝加哥风格引文Gatdula, Donnabelle. "SSS Eyes New Types of Investment." Philippine Star 1999.
MLA引文Gatdula, Donnabelle. "SSS Eyes New Types of Investment." Philippine Star, 1999.
警告：这些引文格式不一定是100％准确.