KASTINIWATI; FIRMAN FERDIANSYAH. Concrete Media to Increase Activities and Cognitive Learning Outcomes of Addition and Subtraction. Universal Education Journal of Teaching and Learning, [S. l.], v. 1, n. 1, p. 11–17, 2024. DOI: 10.63081/uejtl.v1i1.3. Disponível em: https://journal.uepublisher.com/uejtl/index.php/home/article/view/3. Acesso em: 10 may. 2026.