Surapong Subongkod. 1999. Application of remote sensing and global positioning system for surveying and topographic map revision at Khao Ang Ru Nai wildlife sanctuary in east region, Thailand. Graduate School, Kasetsart University;
Surapong Subongkod. (1999) Application of remote sensing and global positioning system for surveying and topographic map revision at Khao Ang Ru Nai wildlife sanctuary in east region, Thailand . Kasetsart University/Bangkok.
Surapong Subongkod. Application of remote sensing and global positioning system for surveying and topographic map revision at Khao Ang Ru Nai wildlife sanctuary in east region, Thailand. . Bangkok:Kasetsart University, 1999.
Surapong Subongkod. (1999) Application of remote sensing and global positioning system for surveying and topographic map revision at Khao Ang Ru Nai wildlife sanctuary in east region, Thailand . Kasetsart University/Bangkok.