M. H. Batubara and W. . Syarvina, “Changes in Consumer Behavior in Water Use Resulting in an Increase in Monthly Water Account Arrears Since the Covid-19 Pandemic (Case Study of PDAM Tirtanadi Cemara Branch, North Sumatra Province) ”, j.management, vol. 2, no. 1, pp. 34– 38, Mar. 2022.