Galvez, W. (2021). Sadain takes over as chief implementer of 'BBB' project. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGalvez, Waylon. "Sadain Takes over as Chief Implementer of 'BBB' Project." Manila Bulletin 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGalvez, Waylon. "Sadain Takes over as Chief Implementer of 'BBB' Project." Manila Bulletin, 2021.
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