PENGARUH PENGGUNAAN GEOBOARD TERHADAP PEMAHAMAN KONSEP SUDUT PADA SISWA SD. Journal of Golden Generation Education, [S. l.], v. 2, n. 1, p. 771 – 776, 2026. DOI: 10.65244/jgge.v2i1.544. Disponível em: https://ejournal.lppnusantara.com/index.php/JGGEducation/article/view/544. Acesso em: 26 may. 2026.