TAPPEL, E. A.; SIRRIS, S. Formal and informal : Two patterns of organizing voluntary work. Scandinavian Journal for Leadership and Theology, [S. l.], v. 11, p. 78–98, 2024. DOI: 10.53311/sjlt.v11.126. Disponível em: https://sjlt-journal.com/index.php/sjlt/article/view/126. Acesso em: 21 jul. 2024.