Iosifovich Abramson, Yakov. “On Psychological Issues in Math Problems”. Obutchénie. Revista de Didática e Psicologia Pedagógica 8, no. Contínua (novembro 23, 2024). Acessado janeiro 4, 2026. https://seer.ufu.br/index.php/Obutchenie/article/view/76091.