Iksan bin Matrais. (1972). Hydrogeology of the island of Lombok, Indonesia: (with hydrogeologic map at scale 1:400, 000). Geological Survey of Indonesia.
Chicago-referens (17:e uppl.)Iksan bin Matrais. Hydrogeology of the Island of Lombok, Indonesia: (with Hydrogeologic Map at Scale 1:400, 000). Bandung: Geological Survey of Indonesia, 1972.
MLA-referens (8:e uppl.)Iksan bin Matrais. Hydrogeology of the Island of Lombok, Indonesia: (with Hydrogeologic Map at Scale 1:400, 000). Geological Survey of Indonesia, 1972.
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