N. SHAFI, T. AKHTAR, Z. JANNAT and J. AYUB (2015) “Comparison of Physico-Chemical and Biological Characteristics of Water of Three Different Sources, River Neelum, Spring Water and Filter Plant ”, Sindh University Research Journal - SURJ (Science Series), 47(2). Available at: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/5131 (Accessed: 1October2026).