Rivera, D. PetroEnergy profit nearly triples in H1. IN Business. The Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRivera, Danessa. "PetroEnergy Profit Nearly Triples in H1. IN Business." The Philippine Star .
एमएलए (9वां संस्करण) प्रशस्ति पत्रRivera, Danessa. "PetroEnergy Profit Nearly Triples in H1. IN Business." The Philippine Star, .
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