Somkaun, N., R. Chumnanmak, W. Narongchai, and P. Suppatkul. “The Transformation from Farmer to Entrepreneur in Khon Kaen Province, Thailand”. Journal of Mekong Societies, vol. 15, no. 3, Dec. 2019, pp. 95-120, https://so03.tci-thaijo.org/index.php/mekongjournal/article/view/209091.