Boonsorn, P. and Makmee, P. (2020) “Development of Guidelines to Promote Proactive Behaviors in Chon Buri Aluminium Packaging Factory Employees: Mixed Method Research”, Journal of the Association of Researchers, 22(2), pp. 37–50. available at: https://so04.tci-thaijo.org/index.php/jar/article/view/242908 (accessed: 22 September 2026).