Piriyakoontorn, S., K. Balthip, U. Petchruschatachart, and N. Tiraphat. “Developing a Model for Enhancing the Goodness , Smartness and Happiness of Thai Primary School Students in Songkhla Province: A Participation Action Research Study”. Journal of Research in Nursing-Midwifery and Health Sciences, vol. 36, no. 3, Dec. 2016, pp. 150-71, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/73426.