Arista, G. D., Isrok'atun, I. and Aeni, A. N. (2026) “Effect of Problem-Based Learning Approach Assisted by GEO-KODE on Understanding the Mathematical Concepts of Composition and Decomposition of Plane Shapes”, Kognitif: Jurnal Riset HOTS Pendidikan Matematika, 6(3), pp. 1143–1166. doi: 10.51574/kognitif.v6i3.5358.