AUNZO, Rodulfo. Off-Classroom Mathematics Teaching and Learning Using Text-Messaging Approach . International Journal of Multidisciplinary: Applied Business and Education Research, Malang, Indonesia, v. 2, n. 8, p. 626–639, 2021. DOI: 10.11594/ijmaber.02.08.02. Disponível em: https://ijmaberjournal.org/index.php/ijmaber/article/view/151. Acesso em: 20 mar. 2026.