Ronda, R. A. (2001). GSIS auditors stage mass walkout. Philippine Star.
芝加哥风格引文Ronda, Rainier Allan. "GSIS Auditors Stage Mass Walkout." Philippine Star 2001.
MLA引文Ronda, Rainier Allan. "GSIS Auditors Stage Mass Walkout." Philippine Star, 2001.
警告：这些引文格式不一定是100％准确.