PŁONKA, Maria. Mutual Insurance Companies as Entities of the Social Economy Sector. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, Krakow, n. 901, p. 113–128, 2015. DOI: 10.15678/krem.844. Disponível em: https://krem.uek.krakow.pl/index.php/krem/article/view/844. Acesso em: 23 jan. 2026.