MARIANA, N.; SASMITA, F. E. Designed activities on developing mental strategies using alms value-based learning trajectory in elementary school. Journal on Mathematics Education, [S. l.], v. 15, n. 3, p. 859–882, 2024. DOI: 10.22342/jme.v15i3.pp859-882. Disponível em: http://jme.ejournal.unsri.ac.id/index.php/jme/article/view/662. Acesso em: 19 sep. 2024.