Atania Christianti Br Ginting, Nur Indah Simamora. Development of Learning Tools Based on a Realistic Mathematics Approach with the Karo Cultural Context to Improve Student’s Mathematical Connection Ability in Class XII. ICRSE [Internet]. 2023 Apr. 8 [cited 2026 May 7];2:71-6. Available from: https://sunankalijaga.org/prosiding/index.php/icrse/article/view/893