Buppasiri, P., N. Limratana, K. Thepsuthamarat, P. Keawpila, and P. Mairiang. “Time Management in Final Year Medical Students, Khon Kaen University”. Srinagarind Medical Journal, vol. 23, no. 2, Nov. 2013, pp. 161-4, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13067.