Gatdula, D. (1999). US healthcare firm buys 50% of Philamcare. Philippine Star.
Chicagoスタイル(17版)引用形式Gatdula, Donnabelle. "US Healthcare Firm Buys 50% of Philamcare." Philippine Star 1999.
MLA(9版)引用形式Gatdula, Donnabelle. "US Healthcare Firm Buys 50% of Philamcare." Philippine Star, 1999.
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