Echeminada, P. (1998). M'danao tribesmen don't need viagra. Philippine Star.
芝加哥风格引文Echeminada, Perseus. "M'danao Tribesmen Don't Need Viagra." Philippine Star 1998.
MLA引文Echeminada, Perseus. "M'danao Tribesmen Don't Need Viagra." Philippine Star, 1998.
警告：这些引文格式不一定是100％准确.