Alegre, R. (1997). Philippine Economic Zone Authority celebrates its 2nd year anniversary. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAlegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAlegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin, 1997.
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