Sudawan Thongroj. 2001. The class score evaluation system for secondary school. Field of Study Technology of Information System Management, Mahidol University;
Sudawan Thongroj. (2001) The class score evaluation system for secondary school . Mahidol University/Bangkok.
Sudawan Thongroj. The class score evaluation system for secondary school. . Bangkok:Mahidol University, 2001.
Sudawan Thongroj. (2001) The class score evaluation system for secondary school . Mahidol University/Bangkok.