APA-referens (7:e uppl.)

Tubeza, P. C., Echavez, A. T., & Veridiano, D. (2001). Ka Popoy shot dead inside UP. Philippine Daily Inquirer.

Chicago-referens (17:e uppl.)

Tubeza, Philip C., Andrea Trinidad Echavez, och Dave Veridiano. "Ka Popoy Shot Dead Inside UP." Philippine Daily Inquirer 2001.

MLA-referens (9:e uppl.)

Tubeza, Philip C., et al. "Ka Popoy Shot Dead Inside UP." Philippine Daily Inquirer, 2001.