Saetang, J., K. Sulumnad, P. Thampitak, and T. Sungkaew. “Factors Affecting Perceived Job Performance Among Staff: A Case Study of Ban Karuna Juvenile Vocational Training Centre for Boys”. The Journal of Behavioral Science, vol. 5, no. 1, July 2012, pp. 33-45, https://so06.tci-thaijo.org/index.php/IJBS/article/view/2200.