Fam, S., N. Ismail, H. Yanto, D. Prastyo, and B. Lau. “Lean Manufacturing and Overall Equipment Efficiency (OEE) in Paper Manufacturing and Paper Products Industry”. Journal of Advanced Manufacturing Technology (JAMT), vol. 12, no. 1(2), Aug. 2018, pp. 461-74, https://ojsdemo.utem.edu.my/jamt/article/view/4305.