Nuntira Supasai. 2007. Short-term leaching of heavy metals from cement from co-processing of industrial sludge containing petroleum and heavy metals as an alternative fuel. Graduate School, Chulalongkorn University;

Nuntira Supasai. Short-term leaching of heavy metals from cement from co-processing of industrial sludge containing petroleum and heavy metals as an alternative fuel. . Bangkok:Chulalongkorn University, 2007.

Nuntira Supasai. (2007) Short-term leaching of heavy metals from cement from co-processing of industrial sludge containing petroleum and heavy metals as an alternative fuel . Chulalongkorn University/Bangkok.