YUSNIA, Desy. Analysis The Ability of Students Problem-Solving on Counting Operations of Algebra Form. MUST: Journal of Mathematics Education, Science and Technology, [S. l.], v. 3, n. 1, p. 1–6, 2018. DOI: 10.30651/must.v3i1.1017. Disponível em: https://journal.um-surabaya.ac.id/matematika/article/view/1017. Acesso em: 9 may. 2024.