Prommart, C. “Factors Related To Quality of Working Life of Workers in a Rubber Wood Processing Factory, Songkhla Province”. Journal of Science and Technology Songkhla Rajabhat University, vol. 1, no. 1, Sept. 2020, pp. 13-24, https://ph02.tci-thaijo.org/index.php/SciAndTechSkru/article/view/234150.