Al-Alawy, Ahmed, and Miqat Salih. 2017. “Comparative Study Between Nanofiltration and Reverse Osmosis Membranes for the Removal of Heavy Metals from Electroplating Wastewater”. Journal of Engineering 23 (4), 1-21. http://joe.uobaghdad.edu.iq/index.php/main/article/view/48.