บุญเรืองจักร ว. . “The Relationship Between Self-Practice Following The Principles of Iddhipãda And Work Performance Effectiveness of Officials at Department”. Journal of Graduate MCU KhonKaen Campus, vol. 3, no. 1, June 2016, pp. 24-35, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/243148.