Angeline S, Manalu H. Analysis of the Influence of Leadership Style and Motivation on the Level of Employee Productivity at PT. Sumber Setamurni. Mantik [Internet]. 2022Feb.22 [cited 2026May1];5(4):2628-33. Available from: https://www.iocscience.org/ejournal/index.php/mantik/article/view/2055