Regalado, E. (2020). Duterte, Go negative for COVID-19. Philippine Star.
芝加哥风格引文Regalado, Edith. "Duterte, Go Negative for COVID-19." Philippine Star 2020.
MLA引文Regalado, Edith. "Duterte, Go Negative for COVID-19." Philippine Star, 2020.
警告：这些引文格式不一定是100％准确.