Marisa Wongkaew และ Apichat Imyim. (2007) Purpurin functionalized amberlite XAD-2 for extraction of heavy metal ions in leachate from cement-based stabilized waste. Chulalongkorn University:ม.ป.ท.Marisa Wongkaew และ Apichat Imyim. 2007. Purpurin functionalized amberlite XAD-2 for extraction of heavy metal ions in leachate from cement-based stabilized waste. ม.ป.ท.:Chulalongkorn University;Marisa Wongkaew และ Apichat Imyim. Purpurin functionalized amberlite XAD-2 for extraction of heavy metal ions in leachate from cement-based stabilized waste. ม.ป.ท.:Chulalongkorn University, 2007. Print.