Abolfazl Naji และ Ahmad Ismail. (2012) Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia. <i>EnvironmentAsia</i>, <i>5</i>(1), p17-25.Abolfazl Naji และ Ahmad Ismail. "Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia". EnvironmentAsia 5 (2012):p17-25.Abolfazl Naji และ Ahmad Ismail. Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia. Thai Society of Higher Education Institutes on Environment:ม.ป.ท. 2012.