Papua New Guinea University of Technology & Davidson, J. (1976). [Report of the Committee of Enquiry into the Operation of the Analysis Laboratory]. Papua New Guinea University of Technology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPapua New Guinea University of Technology और John Davidson. [Report of the Committee of Enquiry into the Operation of the Analysis Laboratory]. Lae: Papua New Guinea University of Technology, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPapua New Guinea University of Technology और John Davidson. [Report of the Committee of Enquiry into the Operation of the Analysis Laboratory]. Papua New Guinea University of Technology, 1976.
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