Rivera, D. (2019). Oil industry sees first hike for 2019 this week. Philippine Star.
Chicago-referens (17:e uppl.)Rivera, Danessa. "Oil Industry Sees First Hike for 2019 This Week." Philippine Star 2019.
MLA-referens (9:e uppl.)Rivera, Danessa. "Oil Industry Sees First Hike for 2019 This Week." Philippine Star, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.