Nicha Silachan. 2005. Development of a workshop curriculum on environmental education project for teachers of school surrounding the boundary of Dong-Yai wildlife sanctuary in Buriram province. Field of Study Environmental Education, Mahidol University;
Nicha Silachan. (2005) Development of a workshop curriculum on environmental education project for teachers of school surrounding the boundary of Dong-Yai wildlife sanctuary in Buriram province . Mahidol University/Bangkok.
Nicha Silachan. Development of a workshop curriculum on environmental education project for teachers of school surrounding the boundary of Dong-Yai wildlife sanctuary in Buriram province. . Bangkok:Mahidol University, 2005.
Nicha Silachan. (2005) Development of a workshop curriculum on environmental education project for teachers of school surrounding the boundary of Dong-Yai wildlife sanctuary in Buriram province . Mahidol University/Bangkok.