Villareal, M. A. (2001). Pioneering micro-finance credit: BPI Foundation. Philippine Star.
芝加哥风格引文Villareal, Miguel Angelo. "Pioneering Micro-finance Credit: BPI Foundation." Philippine Star 2001.
MLA引文Villareal, Miguel Angelo. "Pioneering Micro-finance Credit: BPI Foundation." Philippine Star, 2001.
警告：这些引文格式不一定是100％准确.