LIANA, Robert. XXX years of medical rehabilitation by the Agricultural Social Insurance Fund. Ubezpieczenia w Rolnictwie – Materiały i Studia, [S. l.], n. 2/74, p. 273–286, 2020. Disponível em: https://ojs.academicon.pl/ur/article/view/10120. Acesso em: 6 wrz. 2025.