RAHMI WAHYUNI, DIAN ARMANTO, EDY SURYA. Designing, Validating, and Implementing the Seumapa Based Problem Solving (SBPS) Model Assisted by Flipbooks: An Educational Design Research Approach in Indonesian Elementary Mathematics. International Journal of Special Education, [S. l.], v. 41, n. 2, p. 134–159, 2026. Disponível em: https://mail.internationalsped.com/index.php/ijse/article/view/3332. Acesso em: 24 oct. 2026.