Henson, J. M. (2009). Sonsona loses WBO belt but still unbeaten. Philippine Star.
芝加哥风格引文Henson, Joaquin M. "Sonsona Loses WBO Belt but Still Unbeaten." Philippine Star 2009.
MLA引文Henson, Joaquin M. "Sonsona Loses WBO Belt but Still Unbeaten." Philippine Star, 2009.
警告：这些引文格式不一定是100％准确.