Kirk, H. J. C. (1962). The Geology and mineral resources of the Semporna Peninsula, North Borneo. Govt. Printer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Kutching, Sarawak: Govt. Printer, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Govt. Printer, 1962.
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