Sari DP. Determination Of Workload And Number Of Optimal Workers For The Boiler Section Based On Pulse Rate And Working Sampling (Case Study : PT. Perkebunan Nusantara II PKS Pagar Merbau) . JBST [Internet]. 2022Feb.7 [cited 2026Aug.16];10(1):28-31. Available from: https://iocscience.org/ejournal/index.php/JBST/article/view/1743