Phayong Thepaksorn และ Sathirakorn Pongpanich. (2012) Developing health impact assessment tools : a case study of cement factory in Nakhon Si Thammarat province, Thailand. Chulalongkorn University:ม.ป.ท.Phayong Thepaksorn และ Sathirakorn Pongpanich. 2012. Developing health impact assessment tools : a case study of cement factory in Nakhon Si Thammarat province, Thailand. ม.ป.ท.:Chulalongkorn University;Phayong Thepaksorn และ Sathirakorn Pongpanich. Developing health impact assessment tools : a case study of cement factory in Nakhon Si Thammarat province, Thailand. ม.ป.ท.:Chulalongkorn University, 2012. Print.