Piyawat Saipan. 2008. Health risk assessment for people in Ronphibun district, Nakhon Si Thammarat province from exposure to arsenic. Faculty of Veterinary Science, Chulalongkorn University;
Piyawat Saipan. (2008) Health risk assessment for people in Ronphibun district, Nakhon Si Thammarat province from exposure to arsenic . Chulalongkorn University/Bangkok.
Piyawat Saipan. Health risk assessment for people in Ronphibun district, Nakhon Si Thammarat province from exposure to arsenic. . Bangkok:Chulalongkorn University, 2008.
Piyawat Saipan. (2008) Health risk assessment for people in Ronphibun district, Nakhon Si Thammarat province from exposure to arsenic . Chulalongkorn University/Bangkok.