TURNIP, W. J. Effect of Motivation and Work Environment on Employee Performance of PT. Rottela Persada Mandiri Perbaungan. Journal of Management Science (JMAS), [S. l.], v. 3, n. 1, p. 13–18, 2020. Disponível em: https://exsys.iocspublisher.org/index.php/JMAS/article/view/43. Acesso em: 17 apr. 2026.