JUMAROH, J.; FAIZ, A.; AFENDI, A. H. The Impact of the Hand Calculator Prism Model on Fourth-Grade Students’ Computational Abilities. Journal of Innovation and Research in Primary Education, [S. l.], v. 4, n. 4, p. 3095–3107, 2025. DOI: 10.56916/jirpe.v4i4.2197. Disponível em: https://ejournal.papanda.org/index.php/jirpe/article/view/2197. Acesso em: 21 jan. 2026.