Andriyani, Joko Lianto Buliali, dan Andreast Wahyu Sugiyarta. 2020. “Analysis of the Circle Concept Understanding Based on the Learning Style of Deaf Students at SLB Negeri 2 Bantul”. Math Didactic: Jurnal Pendidikan Matematika 6 (3), 296-307. https://doi.org/10.33654/math.v6i3.1095.