APA (7 वां संस्करण) प्रशस्ति पत्र

Ang, E. R., Calces, A. A. C., Roxas, A. Y., & Sangalang, S. P. A retrospective study of the Top 100 drugs in the Surgery Ward of the Philippine General Hospital for the 3rd Quarter of 1997.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ang, Enalyn R., Agnes Abigail C. Calces, Angeline Y. Roxas, और Siena P. Sangalang. A Retrospective Study of the Top 100 Drugs in the Surgery Ward of the Philippine General Hospital for the 3rd Quarter of 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ang, Enalyn R., et al. A Retrospective Study of the Top 100 Drugs in the Surgery Ward of the Philippine General Hospital for the 3rd Quarter of 1997.

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