Staff’s Perceptions of Vision and Long Term Principal Leadership in South African schools: An Exploratory Study. Mediterranean Journal of Social Sciences, [S. l.], v. 5, n. 4, p. 406, 2014. Disponível em: https://www.richtmann.org/journal/index.php/mjss/article/view/2228.. Acesso em: 18 jul. 2024.