XU, X. Break Time on the School Schedule: Evidence from Basic Education Schools in China. Science Insights Education Frontiers, [S. l.], v. 19, n. 2, p. 3103–3113, 2023. DOI: 10.15354/sief.23.re315. Disponível em: https://www.bonoi.org/index.php/sief/article/view/1229. Acesso em: 22 apr. 2026.