Stretton, A. Urban housing policy in Papua New Guinea. Institute of Applied Social and Economic Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStretton, Alan. Urban Housing Policy in Papua New Guinea. Institute of Applied Social and Economic Research.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStretton, Alan. Urban Housing Policy in Papua New Guinea. Institute of Applied Social and Economic Research.
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