Ferry F, Livea L, Hendry H. The Influence of Leadership, Motivation and Work Discipline on Employee Performance at PT Panjiwira Surya Mandiri Medan. Mantik [Internet]. 2020Aug.31 [cited 2026Jun.13];4(2):1350-5. Available from: https://iocscience.org/ejournal/index.php/mantik/article/view/949