MACIEJEWSKA, Katarzyna. The birth of the system insurance of retirement benefits in agriculture at the turn of the 1980s. Ubezpieczenia w Rolnictwie – Materiały i Studia, [S. l.], n. 1/75, p. 59–77, 2021. Disponível em: https://ojs.academicon.pl/ur/article/view/10095. Acesso em: 6 wrz. 2025.