Calica, M. A. L. (2006). GMA orders transparency in all govt bidding. Philippine Star.
Chicago Style aipamenaCalica, Ma. Aurea L. "GMA Orders Transparency in All Govt Bidding." Philippine Star 2006.
MLA aipamenaCalica, Ma. Aurea L. "GMA Orders Transparency in All Govt Bidding." Philippine Star, 2006.
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