Rahmawati, Ika, et al. “Implementing the Realistic Mathematics Education (RME) Approach to Three-Dimensional Shapes Characteristics Using Traditional Blitar Souvenirs in Elementary Schools”. Edunesia : Jurnal Ilmiah Pendidikan, vol. 6, no. 1, Jan. 2025, pp. 14-28, doi:10.51276/edu.v6i1.958.