Basra, S. M., Iqbal, Z., ur-Rehman, K., Ur-Rehman, H. and Ejaz, M. (2014) “Time Course Changes in pH, Electrical Conductivity and Heavy Metals (Pb, Cr) of Wastewater Using Moringa oleifera Lam. Seed and Alum, a Comparative Evaluation”, Journal of Applied Research and Technology, 12(3). doi: 10.1016/S1665-6423(14)71635-9.