Swarant D, Kristi Endah Ndilosa Ginting. Effect of Job Stress, Job Competence and Job Training on Employee Performance at PT Indostar Sukses Mandiri Medan. Mantik [Internet]. 2021Feb.1 [cited 2026Apr.23];4(4):2558-62. Available from: https://www.iocscience.org/ejournal/index.php/mantik/article/view/1208