Sardashti, A. R., Rumeau, M. (2004). 'Fixation of Cu (ꞮꞮ) on Digested Sludge and Determination of Kex Using Chronopotentiometric Method with Cathodic Dissolution', Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 14(4), pp. 51-59. doi: 10.22093/wwj.2004.176488