El Awamy, I.O., Abduljalil , R.A.A. and Abduljalil, O.A.A. (2020) “Determining the Levels of Some Heavy Metals in Springs and Groundwater Wells in the Northeastern Region of Libya”, Al-Mukhtar Journal of Sciences, 35(4), pp. 329–343. doi:10.54172/mjsc.v35i4.347.