Al Mubarak, H. A. E. A., & Al Shihri, R. (2018). Spatial variability of water quality of wells in Wadi Hanifa applied study onWadi Hanifa  in Darayya  Governorate. Journal of Natural Sciences, Life and Applied Sciences, 2(2), 16-1. https://doi.org/10.26389/AJSRP.H140318