“GESTURE SISWA TUNAGRAHITA DALAM MENYELESAIKAN MASALAH MATEMATIKA ”, lintang. songo. j. pendidik., vol. 2, no. 2, pp. 38–51, Aug. 2019, Accessed: Oct. 17, 2026. [Online]. Available: https://journal.unusida.ac.id/index.php/jls/article/view/294