Outsourcing: concept, objectives, and tasks, experience of implementing outsourcing in railway transport. Международный научный журнал «Инженер», [S. l.], v. 3, n. 4, p. 68–72, 2026. DOI: 10.56143/3030-3893-2025-4-68-72. Disponível em: https://engineer.tstu.uz/index.php/engineer-tstu/article/view/132. Acesso em: 26 jul. 2026.