VAN WYK, C.; PELSER, A. M. Leaderships Role In Effective Implementation Of School Discipline Policies. International Business & Economics Research Journal (IBER), [S. l.], v. 13, n. 4, p. 833–840, 2014. DOI: 10.19030/iber.v13i4.8691. Disponível em: https://clutejournals.com/index.php/IBER/article/view/8691. Acesso em: 17 jul. 2024.