Srisontisuk, S., P. Katchamat, and P. Pakdee. “Poverty and the Ethnic Minority Groups in Thailand”. Journal of Mekong Societies, vol. 1, no. 2, Aug. 2013, pp. 151-89, https://so03.tci-thaijo.org/index.php/mekongjournal/article/view/10637.