VAN DE SANDE, C. C. Keeping in School Shape (KiSS): A Program for Rehearsing Math Skills Over Breaks from School. Journal of International Education and Practice, [S. l.], v. 2, n. 4, p. 29–39, 2019. DOI: 10.30564/jiep.v2i4.1383. Disponível em: https://journals.bilpubgroup.com/index.php/jiep/article/view/29. Acesso em: 23 aug. 2025.