ARNOLD, N. H.; UKPERE, W. I. Proposed Leadership Approach for Solidarity Trade Union. Mediterranean Journal of Social Sciences, [S. l.], v. 5, n. 2, p. 721, 2014. Disponível em: https://www.richtmann.org/journal/index.php/mjss/article/view/2037. Acesso em: 1 apr. 2023.