PURWANTI, P.; SITORUS, M. . Factors That Affect Employee Productivity (Case Study at PT. Sagami Indonesia). Journal of Management Science (JMAS), [S. l.], v. 1, n. 1, Januari, p. 7–11, 2018. Disponível em: https://exsys.iocspublisher.org/index.php/JMAS/article/view/2. Acesso em: 27 jul. 2026.