Apinya Ratanachai. (2008) Information source, communication channel and adoption of rubber production practices : a case study of rubber smallholders in Hat Yai district Songkhla province /. Kasetsart University,:ม.ป.ท.Apinya Ratanachai. 2008. Information source, communication channel and adoption of rubber production practices : a case study of rubber smallholders in Hat Yai district Songkhla province /. ม.ป.ท.:Kasetsart University,;Apinya Ratanachai. Information source, communication channel and adoption of rubber production practices : a case study of rubber smallholders in Hat Yai district Songkhla province /. ม.ป.ท.:Kasetsart University, 2008. Print.