Chaiyasubmungkorn, A., and R. Prawatmuang. “Factors in Accident of Transport Worker : Poultry Feed Processing in Central”. Doctor of Philosophy in Social Sciences Journal, vol. 2, no. 3, Dec. 2023, pp. 62-79, https://so08.tci-thaijo.org/index.php/dpssj/article/view/2515.