Developing Concept Construction Based Abstract Algebra Textbook to Improve Students’ Understanding. EduMa: Mathematics education learning and teaching, [S. l.], v. 8, n. 2, p. 36–41, 2019. DOI: 10.24235/eduma.v8i2.4912. Disponível em: https://journal1.uinssc.ac.id/index.php/eduma/article/view/4912. Acesso em: 28 may. 2026.