NELISSEN, J.M.C. Boekbespreking ’Mathematics instruction for special-needs students. Effects of instructional variants in addition and substraction up to 100’. Pedagogische Studiën, [S. l.], v. 80, n. 5, 2003. Disponível em: https://pedagogischestudien.nl/article/view/14703.. Acesso em: 18 jun. 2025.