Frago, P. M. (2008). Media activism: Bantay Kalikasan in the passage of the Clean Air Act. Philippine Political Science Journal.
Chicago Style aipamenaFrago, Perlita M. "Media Activism: Bantay Kalikasan in the Passage of the Clean Air Act." Philippine Political Science Journal 2008.
MLA aipamenaFrago, Perlita M. "Media Activism: Bantay Kalikasan in the Passage of the Clean Air Act." Philippine Political Science Journal, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.