YAVI AR, Tania Ulfa; SYAMSURI, Abd. Rasyid. Employee Performance at PT. Pos Indonesia Persero Medan Barat Medan City: The Impact of Psychological Workload and Internal Work Environment. International Journal of Business, Technology and Organizational Behavior (IJBTOB), [S. l.], v. 2, n. 3, p. 294–303, 2022. DOI: 10.52218/ijbtob.v2i3.202. Disponível em: https://www.ijbtob.org/index.php/ijbtob/article/view/202. Acesso em: 18 apr. 2026.