Pumyaem, K., W. Laotaweesub, and S. Cheevapruk. “Management of Plastic Injection Processes: A Case Study of Electric Lamp Manufacturing”. Journal of Applied Research on Science and Technology (JARST), vol. 20, no. 1, Apr. 2021, pp. 145-56, doi:10.14456/rj-rmutt.2021.14.