K. E L, J. O N, A.W V. EVALUATION OF WATER QUALITY INDEX OF THE BRASS RIVER, BAYELSA STATE, SOUTH-SOUTH, NIGERIA. Int. J. Res. Granthaalayah [Internet]. 2017 Aug. 31 [cited 2024 Jul. 23];5(8):277-8. Available from: https://granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG17_A08_601