Cosalan, P. M. (1993). Development concerns, needs, and priorities in the Cordillera. Cordillera Studies Center, University of the Philippines College Baguio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCosalan, Peter M. Development Concerns, Needs, and Priorities in the Cordillera. Baguio City: Cordillera Studies Center, University of the Philippines College Baguio, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCosalan, Peter M. Development Concerns, Needs, and Priorities in the Cordillera. Cordillera Studies Center, University of the Philippines College Baguio, 1993.
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