LESTARI, N.; SARI, I. K.; FITRA, R. ANALYSIS OF STUDENTS’ DIFFICULTIES IN SOLVING MATRIX OPERATIONS PROBLEMS. JUPIKA: JURNAL PENDIDIKAN MATEMATIKA, [S. l.], v. 9, n. 1, p. 1-10, 2026. DOI: 10.37478/jupika.v9i1.7576. Disponível em: https://e-journal.uniflor.ac.id/index.php/jupika/article/view/7576. Acesso em: 29 oct. 2026.