Ina Namora Putri Siregar, and Suryani. “Efforts to Improve Employee Performance Through Communication And Leadership Style In PT J&T Express Medan”. International Journal of Science, Technology & Management 2, no. 4 (July 25, 2021): 1367-1370. Accessed November 28, 2024. https://ijstm.inarah.co.id/index.php/ijstm/article/view/187.