Soontrapa, Suppasin, Chanintr Mahakkanukrauh, and Sakda Chaikitpinyo. 2013. “The use of microcomputer in item analysis”. Srinagarind Medical Journal 3 (1):14-20. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13434.