APA-referens (7:e uppl.)

Rivera, D. Big 3 oil firms' market share continue to shrink last year. IN Business. The Philippine Star.

Chicago-referens (17:e uppl.)

Rivera, Danessa. "Big 3 Oil Firms' Market Share Continue to Shrink Last Year. IN Business." The Philippine Star .

MLA-referens (9:e uppl.)

Rivera, Danessa. "Big 3 Oil Firms' Market Share Continue to Shrink Last Year. IN Business." The Philippine Star, .

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.