PŁONKA, Maria; JEDYNAK, Tomasz. A Statistical Analysis of the Relationship between the Scope and Efficiency of Mutual Insurance Companies in Poland. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, Krakow, n. 907, p. 123–136, 2015. DOI: 10.15678/krem.803. Disponível em: https://psychologia-ekonomiczna.uek.krakow.pl/index.php/krem/article/view/803.. Acesso em: 20 sep. 2024.