Boonreang Kajornsin. 1991. Development of computer package usage for item analysis. Bangkok:Kasetsart University;
Boonreang Kajornsin. (1991) Development of computer package usage for item analysis (รายงานผลงานวิจัย). Kasetsart University:Bangkok.
Boonreang Kajornsin. Development of computer package usage for item analysis. Bangkok:Kasetsart University, 1991.
Boonreang Kajornsin. (1991) Development of computer package usage for item analysis (รายงานผลงานวิจัย). Kasetsart University:Bangkok.