YANGYOZOV, Petko. METHODS FOR ASSESSING INVESTMENTS IN HUMAN RESOURCES. KNOWLEDGE - International Journal , [S. l.], v. 68, n. 1, p. 39–44, 2025. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/7102. Acesso em: 28 aug. 2026.