AU, N.; BAO, T.; NHI, P.; VY, T.; HIEN, T.; HIEP, T.; LINH, L. Entropy weight application for calculating groundwater quality index (EWQI) in groundwater quality zoning in Pleistocene aquifer in the Phu My town, Ba Ria – Vung Tau province. Science & Technology Development Journal: Science of the Earth & Environment, v. 4, n. 1, p. 140-148, 25 jun. 2020.