Kirk, H. J. C. (1962). The Geology and mineral resources of the Semporna Peninsula, North Borneo. Govt. Printer.
Lua i Stíl Chicago (17ú heag.)Kirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Kutching, Sarawak: Govt. Printer, 1962.
Lua MLA (9ú heag.)Kirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Govt. Printer, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.