Kulwachirawan, H. ., S. . Yuphong, and A. . Poolkrajang. “The Development of Analyzing Problem Solving Model in the Operation Process towards the Supervisors in the Apparel Industry”. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, vol. 14, no. 2, May 2020, pp. 383-00, https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/240689.