Gatdula, D. (1999). US healthcare firm buys 50% of Philamcare. Philippine Star.
Cita Chicago (17th ed.)Gatdula, Donnabelle. "US Healthcare Firm Buys 50% of Philamcare." Philippine Star 1999.
Cita MLA (9th ed.)Gatdula, Donnabelle. "US Healthcare Firm Buys 50% of Philamcare." Philippine Star, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.