BACHEV, Hrabrin; MIHAILOVA, Mihaela. State and Evolution of the System of Agricultural Training and Advices in Bulgaria. Bulgarian Journal of Agricultural Economics and Management, Sofia, BG, v. 64, n. 3, p. 21–41, 2019. Disponível em: https://agriacad.eu/ojs/index.php/bjaem/article/view/2879.. Acesso em: 6 oct. 2026.