WALASEK, Jacek. The Agricultural Social Insurance Fund during the COVID-19 pandemic. Ubezpieczenia w Rolnictwie – Materiały i Studia, [S. l.], n. 1/81, p. 273–284, 2024. Disponível em: https://ojs.academicon.pl/ur/article/view/9969. Acesso em: 1 wrz. 2025.