Janjua, S. I., M. Hussain, M. Ahmad, S. Shahzada, G. Ali, K. Maaz, and S. Karim. “Enhanced Photocatalytic Properties of ZnO Nanoparticles for the Degradation of Rhodamine B”. The Nucleus, vol. 52, no. 4, Dec. 2015, pp. 176-9, http://202.83.167.189/index.php/Nucleus/article/view/636.