วราจารย์ พ. “An Application of Ditthadhammikattha in Life Living of People in Pongyangkok District, Amphur Hangchat, Lampang Province”. Journal of Yanasangvorn Research Institute Mahamakut Buddhist University, vol. 4, no. 2, Dec. 2013, pp. 25-38, https://so04.tci-thaijo.org/index.php/yri/article/view/174357.