Romulo, B. D. (1999). The Aeta's friendship with the US. IN Editorial [column]. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRomulo, Beth Day. "The Aeta's Friendship with the US. IN Editorial [column]." Manila Bulletin 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRomulo, Beth Day. "The Aeta's Friendship with the US. IN Editorial [column]." Manila Bulletin, 1999.
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