https://ult.fmipa.uho.ac.id/wp-content/upgrade/
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GRIMA, N., AL SHREF, M., NAMI, A. and AL SHAPA, A. 2018. EVALUATION OF GROUND WATER QUALITY IN SOME WELLS AT QASR KHAIR AREA. Journal of Humanitarian and Applied Sciences . 3, 6 (Dec. 2018), 184–193.