Buppasiri, Pranom, Piyathida Kuhirunyaratn, Sompong Srisenpang, Pungpayom Kaewpila, Kanyapat Worasing, and Jintana Sattayasai. 2013. “Correlation Between the High School and the First Year Pre-Medical Grades”. Srinagarind Medical Journal 27 (4):326-31. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/11123.