TY - BOOK AU - Roslan Rajali TI - Laporan penyiasatan sumber airtanah bagi Sekolah Kebangsaan Siang-Siang, Lawas, Sarawak=: Investigation into groundwater source for Sekolah Kebangsaan Siang-Siang, Lawas, Sarawak PY - 2001/// KW - Groundwater KW - Lawas KW - Sarawak N2 - The study area is generally overlain by quaternary sediments, which consist of clay with a variable amount of organic materials. It is underlain by few layers of fine-to-medium grained sand with a variable amount of organic materials ER -