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), pp. 282-286. doi: 10.56338/ijhess.v3i4.1902.