KRAKOWIAK, Piotr. Educational Functions of Volunteering and their Perception in the Teaching of the Catholic Church in the XXI century. Paedagogia Christiana, [S. l.], v. 32, n. 2, p. 163–184, 2014. DOI: 10.12775/PCh.2013.031. Disponível em: https://apcz.umk.pl/PCh/article/view/PCh.2013.031. Acesso em: 2 jan. 2025.