APA-referens (7:e uppl.)

Gatdula, D. L. (2001). PNCC to streamline operations. Philippine Star.

Chicago-referens (17:e uppl.)

Gatdula, Donabelle L. "PNCC to Streamline Operations." Philippine Star 2001.

MLA-referens (9:e uppl.)

Gatdula, Donabelle L. "PNCC to Streamline Operations." Philippine Star, 2001.