Velasco, M. M. (2018). Sixth oil price hike this year takes effect. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVelasco, Myrna M. "Sixth Oil Price Hike This Year Takes Effect." Manila Bulletin 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVelasco, Myrna M. "Sixth Oil Price Hike This Year Takes Effect." Manila Bulletin, 2018.
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