Harya Muldianto, Ussy Andawayanti, Ery Suhartanto, and Widandi Soetopo. “SUSTAINABLE WATER SERVICES FEE USING A SYSTEM DYNAMICS APPROACH IN JATIGEDE RESERVOIR”. GEOMATE Journal, vol. 19, no. 72, Aug. 2020, pp. 8-13, https://geomatejournal.com/geomate/article/view/1097.