JANIK, T.; BECK-KRALA, E. Managing volunteer engagement in reference to empirical research. Managerial Economics, [S. l.], v. 19, n. 1, p. 75, 2019. DOI: 10.7494/manage.2018.19.1.75. Disponível em: https://journals.agh.edu.pl/manage/article/view/3243. Acesso em: 22 dec. 2024.