(2009). GSIS plans to sue PLDT over Meralco tender rule. Manila Standard Today.
Chicago Style (17. basım) Atıf"GSIS Plans to Sue PLDT over Meralco Tender Rule." Manila Standard Today 2009.
MLA (9th ed.) Atıf"GSIS Plans to Sue PLDT over Meralco Tender Rule." Manila Standard Today, 2009.
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