Alegre, R. (1997). Philippine Economic Zone Authority celebrates its 2nd year anniversary. Manila Bulletin.
Chicago-viite (17. p.)Alegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin 1997.
MLA-viite (9. p.)Alegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin, 1997.
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