Hushchuk, I.V., O.I Brezetska, V.I. Hushchuk, and R.R. Drab. 2017. “Monitoring for the State of Water Supply of the Urban Population of the Rivne Oblast for 1999-2015”. Environment & Health 84 (4): 31-37. https://doi.org/10.32402/dovkil2017.04.031.