STECHER, Ludwig. Girls and boys in the all-day school system. Swiss Journal of Educational Research, Bern, v. 29, n. 2, p. 209–230, 2007. DOI: 10.24452/sjer.29.2.4770. Disponível em: https://sjer.ch/article/view/4770. Acesso em: 10 may. 2025.