Polsingchan, S. ., and K. . Rungruang. “The Integration of Contemplative Education Concepts and Problem-Based Learning Method in a Selected Topic of Ethics and Laws in Nursing Profession Subject for Nursing Student”. Nursing Journal of The Ministry of Public Health, vol. 30, no. 2, Aug. 2020, pp. 23-53, https://he02.tci-thaijo.org/index.php/tnaph/article/view/244843.