| How to cite this article:
Omar. A. Al-Harbi, Ghulam Hussain, M. Mujtaba Khan, Mohammaed A. Moallim and Ibrahim A. Al-Sagaby, 2006. Evaluation of Groundwater Quality and its Recharge by Isotopes and Solute Chemistry in Wadi Malal, Al-Madinah Al-Munawarah, Saudi Arabia. Pakistan Journal of Biological Sciences, 9: 260-269.