Barcelo, V. (2018). Duterte apologizes to Kris over Uson 'video'. IN News [column]. Manila Standard.
Chicago Style aipamenaBarcelo, Vito. "Duterte Apologizes to Kris over Uson 'Video'. IN News [column]." Manila Standard 2018.
MLA aipamenaBarcelo, Vito. "Duterte Apologizes to Kris over Uson 'Video'. IN News [column]." Manila Standard, 2018.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.