Abdussakir, A., Firmansyah, A., Rosikhoh, D. and Achadiyah, N.L. 2022. The Geoboard Teaching Aid on Similarity and Symmetry Topics for Elementary School Students. Edumatika : Jurnal Riset Pendidikan Matematika. 5, 1 (Jun. 2022), 14–23. DOI:https://doi.org/10.32939/ejrpm.v5i1.1088.