GINTING, R. M.; MARTIN; TAMBUNAN, D. . The Influence of Work Ethic, Reward and Work Environment on Employee Productivity Pt Bersama Oesaha Saragih Sejahtera. Proceeding of International Conference on Business, Economics, Finance and Technology, [S. l.], v. 1, n. 1, p. 181–196, 2024. Disponível em: https://journal.formosapublisher.org/index.php/pic-beft/article/view/11801. Acesso em: 9 jul. 2026.