Chaisiwamongkol, W., S. Ungpansattawong, A. Maneesriwongul, R. Naimsanit, P. Krongyuth, Y. Tongprasit, W. Srisodaphol, and K. Pattanakul. “The Image of Khon Kaen University under the Undergraduate View”. Asia-Pacific Journal of Science and Technology, vol. 16, no. 6, Apr. 2017, pp. 668-7, https://so01.tci-thaijo.org/index.php/APST/article/view/83447.