Duangporn Thunsiri. 2004. Utilization of foundry sand waste as heary metal sorbent. Field of Study Environmental Management, Chulalongkorn University;
Duangporn Thunsiri. (2004) Utilization of foundry sand waste as heary metal sorbent . Chulalongkorn University/Bangkok.
Duangporn Thunsiri. Utilization of foundry sand waste as heary metal sorbent. . Bangkok:Chulalongkorn University, 2004.
Duangporn Thunsiri. (2004) Utilization of foundry sand waste as heary metal sorbent . Chulalongkorn University/Bangkok.