Boru, M. S. ., L. Ambarwati, and F. A. Hidajat. “Preliminary Research: Development of Digital Student Worksheets Based on Indonesian Realistic Mathematics Education To Improve Deaf Students’ Understanding of Mathematical Concepts”. Mathline : Jurnal Matematika Dan Pendidikan Matematika, vol. 9, no. 1, Feb. 2024, pp. 285-04, doi:10.31943/mathline.v9i1.584.