Romero, A. (2021). Duterte announces retirement from politics. Philippine Star.
芝加哥风格引文Romero, Alexis. "Duterte Announces Retirement from Politics." Philippine Star 2021.
MLA引文Romero, Alexis. "Duterte Announces Retirement from Politics." Philippine Star, 2021.
警告：这些引文格式不一定是100％准确.