Munir, S., A. Mashiatullah, S. Mahmood, M. Zafar, T. Javed, and M. S. Khan. 2011. “ASSESSMENT OF GROUNDWATER QUALITY USING PHYSIOCHEMICAL AND GEOCHEMICAL ANALYSIS IN THE VICINITY OF LEI NALA, ISLAMABAD, PAKISTAN”. The Nucleus 48 (2):149-58. http://thenucleuspak.org.pk/index.php/Nucleus/article/view/851.