A Study of the Impact of School Management Trainings and Head of Schools Attitude on Students Learning Outcomes. Global Journal of Human-Social Science, [S. l.], v. 17, n. G9, p. 33–44, 2017. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/103144. Acesso em: 19 feb. 2026.