Rattanawumol, C., C. Wannapornsiri, M. Petcharat, T. Khamboon, C. Longchoopol, K. Wongchanhan, and J. Ruetrakul. “Effect of S SMILE Instructional Model Based on Contemplative Education for Enhancing Nursing Student’s 5 Skills Subject to Thai Qualifications Frame Work for Higher Education”. Journal of The Royal Thai Army Nurses, vol. 21, no. 2, Aug. 2020, pp. 262-7, https://he01.tci-thaijo.org/index.php/JRTAN/article/view/224683.