YU, Mohan. Problems of Middle Managers in Enterprise Management and Their Improvement Countermeasures. Frontiers in Business, Economics and Management, [S. l.], v. 16, n. 2, p. 8–10, 2024. DOI: 10.54097/y8ad0r48. Disponível em: https://drpress.org/ojs/index.php/fbem/article/view/25213. Acesso em: 30 aug. 2026.