Pannipa Tian. 2002. Environmental geology Changwat Buriram. Field of Study Geology, Chulalongkorn University;
Pannipa Tian. (2002) Environmental geology Changwat Buriram . Chulalongkorn University/Bangkok.
Pannipa Tian. Environmental geology Changwat Buriram. . Bangkok:Chulalongkorn University, 2002.
Pannipa Tian. (2002) Environmental geology Changwat Buriram . Chulalongkorn University/Bangkok.