Saenagri, Angga, Osly Usman, and Gos Ishak. “Implementation of Total Productive Maintenance and Lean Manufacturing in the Pharmaceutical Industry: An Empirical Study”. Journal of Business and Management Studies 5, no. 3 (June 11, 2023): 114–124. Accessed November 21, 2025. https://al-kindipublishers.org/index.php/jbms/article/view/5457.