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Terms of reference for a study with regard to the establishment of a homogeneous height system in Indonesia (Dok.No.06/1979): revisi Dok.No.11/1977.
A levelling network of high order of accuracy extended over large areas, known as geodetic levelling, is required to furnish accurate vertical control for all surveying and mapping operations. The highest precision leveling network is neede for the irrigation and water-works project due to the fact that irrigation and drainage systems have to be planned carefully on relatively flat area.
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