Dyfyniad APA

Rivera, D. PetroEnergy, partners extend West Africa oil concession. The Philippine Star.

Dyfyniad Arddull Chicago

Rivera, Danessa. "PetroEnergy, Partners Extend West Africa Oil Concession." The Philippine Star .

Dyfyniad MLA

Rivera, Danessa. "PetroEnergy, Partners Extend West Africa Oil Concession." The Philippine Star, .

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