©2013 National Research Council of Thailand
Suttipat Kongpetch. 2005. Formulation of environmental education training curriculum on tourist natural resources conservation for Ao Phang-Nga National Park voluntary rangers. Field of Study Environmental Education, Mahidol University;
Suttipat Kongpetch. (2005) Formulation of environmental education training curriculum on tourist natural resources conservation for Ao Phang-Nga National Park voluntary rangers . Mahidol University/Bangkok.
Suttipat Kongpetch. Formulation of environmental education training curriculum on tourist natural resources conservation for Ao Phang-Nga National Park voluntary rangers. . Bangkok:Mahidol University, 2005.
Suttipat Kongpetch. (2005) Formulation of environmental education training curriculum on tourist natural resources conservation for Ao Phang-Nga National Park voluntary rangers . Mahidol University/Bangkok.