ROHIMATUNNISA, Dela; JATISUNDA, Mohamad Gilar; SANTOSO, Erik. From Learning Obstacles to Instructional Design: Bridging Theory and Practice in Algebra Education through Didactical Design Research. International Journal of Educational Innovation and Research, [S. l.], v. 4, n. 2, p. 308–322, 2025. DOI: 10.31949/ijeir.v4i2.15308. Disponível em: https://www.ejournal.unma.ac.id/index.php/ijeir/article/view/15308. Acesso em: 1 aug. 2025.