Manuel, B. B., & Medel, P. C. (1976). A practical guide to methodology of research and thesis writing. The Authors.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रManuel, Bienvenido B., और Paz C. Medel. A Practical Guide to Methodology of Research and Thesis Writing. Manila: The Authors, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रManuel, Bienvenido B., और Paz C. Medel. A Practical Guide to Methodology of Research and Thesis Writing. The Authors, 1976.
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