JULIA, Rida; SUDIANTO, Sudianto; NAHDI, Dede Salim; CAHYANINGSIH, Ujiati. Reconceptualising Mathematical Problem Solving and Higher-Order Thinking: A Comparative Analysis of Lesson Study-Based Instruction and Conventional Teaching . International Journal of Educational Innovation and Research, [S. l.], v. 4, n. 2, p. 280–288, 2025. DOI: 10.31949/ijeir.v4i2.15179. Disponível em: https://www.ejournal.unma.ac.id/index.php/ijeir/article/view/15179. Acesso em: 1 aug. 2025.