Suttiwan Sombatmark. 2003. The roles of the local people in preserving the National Forest Reserve case study : Lho Chan Kra National Forest Reserve, Amphur Tamod and Amphur Kongrha, Phatthalung province, Thailand. Field of Study Environmental Planning for Community and Rural Development, Mahidol University;
Suttiwan Sombatmark. (2003) The roles of the local people in preserving the National Forest Reserve case study : Lho Chan Kra National Forest Reserve, Amphur Tamod and Amphur Kongrha, Phatthalung province, Thailand . Mahidol University/Bangkok.
Suttiwan Sombatmark. The roles of the local people in preserving the National Forest Reserve case study : Lho Chan Kra National Forest Reserve, Amphur Tamod and Amphur Kongrha, Phatthalung province, Thailand. . Bangkok:Mahidol University, 2003.
Suttiwan Sombatmark. (2003) The roles of the local people in preserving the National Forest Reserve case study : Lho Chan Kra National Forest Reserve, Amphur Tamod and Amphur Kongrha, Phatthalung province, Thailand . Mahidol University/Bangkok.