Velasco, M. M. (1999). NPC debt swells to $5.7B; privatization plan stalled? Manila Bulletin.
Chicago Style (17. basım) AtıfVelasco, Myrna M. "NPC Debt Swells to $5.7B; Privatization Plan Stalled?" Manila Bulletin 1999.
MLA (9th ed.) AtıfVelasco, Myrna M. "NPC Debt Swells to $5.7B; Privatization Plan Stalled?" Manila Bulletin, 1999.
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