El-Naqa, A. R., K. M. Ibrahim, and M. Abu Alrous. “Hydrogeochemical Investigation of the Origin of Molybdenum (Mo) in Groundwater Resources in Wadi Al Arab Area, Northern Jordan”. Acque Sotterranee - Italian Journal of Groundwater, vol. 7, no. 3, Sept. 2018, pp. 19-30, doi:10.7343/as-2018-341.