Sinta, D., Rajindra, R. and Guasmin, G. 2021. Analysis of the Operational Cost Budget as a Tool for Planning and Controlling Operational Costs at the Regional Water Company of Donggala Regency. International Journal of Health, Economics, and Social Sciences (IJHESS). 3, 4 (Oct. 2021), 282-286. DOI:https://doi.org/10.56338/ijhess.v3i4.1902.