APA-referens (7:e uppl.)

Calica, A. P-Noy awards mining companies for exemplary practices. In People & Events. The Philippine Star.

Chicago-referens (17:e uppl.)

Calica, Aurea. "P-Noy Awards Mining Companies for Exemplary Practices. In People & Events." The Philippine Star .

MLA-referens (9:e uppl.)

Calica, Aurea. "P-Noy Awards Mining Companies for Exemplary Practices. In People & Events." The Philippine Star, .