INA NAMORA PUTRI SIREGAR; SURYANI. Efforts to Improve Employee Performance Through Communication And Leadership Style In PT J&T Express Medan. International Journal of Science, Technology & Management, [S. l.], v. 2, n. 4, p. 1367–1370, 2021. DOI: 10.46729/ijstm.v2i4.187. Disponível em: https://www.ijstm.inarah.co.id/index.php/ijstm/article/view/187. Acesso em: 24 dec. 2025.