Chua, G. S. (1998). Problem employees. IN Beyond bottom lines [column]. Philippine Star.
芝加哥风格引文Chua, George S. "Problem Employees. IN Beyond Bottom Lines [column]." Philippine Star 1998.
MLA引文Chua, George S. "Problem Employees. IN Beyond Bottom Lines [column]." Philippine Star, 1998.
警告：这些引文格式不一定是100％准确.