Measuring the social impact: An example of Slawek Foundation. Social Entrepreneurship Review, Poland, v. 1, p. 20–32, 2018. DOI: 10.15678/ES.2018.1.02. Disponível em: https://ser.uek.krakow.pl/index.php/ser/article/view/23987. Acesso em: 1 nov. 2026.