Endriga, M. Y. (2000). PLDT, NTT sign strategic tie up today. Philippine Star.
Chicagoスタイル(17版)引用形式Endriga, Marigold Yao. "PLDT, NTT Sign Strategic Tie Up Today." Philippine Star 2000.
MLA(9版)引用形式Endriga, Marigold Yao. "PLDT, NTT Sign Strategic Tie Up Today." Philippine Star, 2000.
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