Apichart Suphawajruksakul และ Thanawat Jarupongsakul. (2005) Coastal erosion at the Pak Phanang River Basin Changwat Nakorn Si Thammarat. Chulalongkorn University:ม.ป.ท.Apichart Suphawajruksakul และ Thanawat Jarupongsakul. 2005. Coastal erosion at the Pak Phanang River Basin Changwat Nakorn Si Thammarat. ม.ป.ท.:Chulalongkorn University;Apichart Suphawajruksakul และ Thanawat Jarupongsakul. Coastal erosion at the Pak Phanang River Basin Changwat Nakorn Si Thammarat. ม.ป.ท.:Chulalongkorn University, 2005. Print.