Concepcion, S. O., & Panis, M. M. (1984). A Study on the information system of the Pilot Agency Bureau of Land Transportation. College of Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रConcepcion, Socorro O., और Michael M. Panis. A Study on the Information System of the Pilot Agency Bureau of Land Transportation. Diliman, Quezon City: College of Engineering, 1984.
एमएलए (9वां संस्करण) प्रशस्ति पत्रConcepcion, Socorro O., और Michael M. Panis. A Study on the Information System of the Pilot Agency Bureau of Land Transportation. College of Engineering, 1984.
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