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Utomo, Agus Djoko, Ngurah N. Wiadnyana, -. Husnah, Gordon Douglas Haffner, and Shin-ichi Nakano. The Water Quality Assessment At Gajah Mungkur Reservoir. Research Institute for Inland Fisheries, Research Centre for Fisheries Management and Conservation, The Agency for Marine and Fisheries Research and Development, 2010.

Utomo, Agus Djoko, et al. The Water Quality Assessment At Gajah Mungkur Reservoir. Research Institute for Inland Fisheries, Research Centre for Fisheries Management and Conservation, The Agency for Marine and Fisheries Research and Development, 2010.