BOZKURT, H.; ÖZMUSUL, B. Investigation of Activities in Primary School Mathematics Course Book According to the Intellectual Development Principles. ISPEC International Journal of Social Sciences & Humanities, [S. l.], v. 5, n. 2, p. 129–143, 2021. DOI: 10.46291/ISPECIJSSHvol5iss2pp129-143. Disponível em: https://ispecjournal.org/index.php/ispecijssh/article/view/166. Acesso em: 24 apr. 2024.