Dicdican, R. Y., Leyva, R. G., Padua, G. O., & Pira, M. C. P. (1993). An Information systems study on Blue Cross Health Care, Inc. College of Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDicdican, Ruth Y., Ruby Gisela Leyva, George O. Padua, और Ma. Cristina P. Pira. An Information Systems Study on Blue Cross Health Care, Inc. Diliman, Quezon City: College of Engineering, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDicdican, Ruth Y., et al. An Information Systems Study on Blue Cross Health Care, Inc. College of Engineering, 1993.
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