DOHMEN, Dieter. Internal Efficiency of Educational Systems. Swiss Journal of Educational Research, Bern, v. 25, n. 3, p. 373–404, 2003. DOI: 10.24452/sjer.25.3.4654. Disponível em: https://sjer.ch/article/view/4654. Acesso em: 9 mar. 2025.