Alwashali, E., Jghalef, B., Fadli, M., Ashraf, C. and Abdelhak, G. (2014) “ASSESSMENT OF MICROBIAL CONTAMINATION OF GROUNDWATER IN OUALIDIA AREA, MOROCCO”, European Scientific Journal, ESJ, 10(14). doi: 10.19044/esj.2014.v10n14p%p.