FRANATHA, Edy; PUTRA, Chandra Anugrah; MISYANTO, Misyanto. Development and Preliminary Evaluation of the Betang Transparent Card for Teaching Fraction Addition with Unlike Denominators in Elementary School. Reflection Journal, [S. l.], v. 6, n. 2, p. 751–762, 2026. DOI: 10.36312/rj.v6i2.5277. Disponível em: https://journal-center.litpam.com/index.php/RJ/article/view/5277. Acesso em: 30 sep. 2026.