Yoelao, D., P. Sombatwattana, and K. Priya Mohan. “Development and Validation of the Sufficiency Living Wage Scale for Workers in Thailand”. Thailand and The World Economy, vol. 39, no. 1, Feb. 2021, pp. 23-38, https://so05.tci-thaijo.org/index.php/TER/article/view/242467.