SLEEGERS, PJ.C; BERGEN, Th.C.M.; GIESBERS, J.H.G.I. School en beleidsvoering. Pedagogische Studiën, [S. l.], v. 69, n. 3, 1992. Disponível em: https://pedagogischestudien.nl/article/view/15237.. Acesso em: 27 oct. 2025.