“Improvements in Mathematical Communication Skills and Changes in Learning Motivation Among Junior High School Students Using a Deep Learning Approach Based on Realistic Mathematics Education (RME)”. SIGMA DIDAKTIKA: Jurnal Pendidikan Matematika 14, no. 2 (July 31, 2026): 69–84. Accessed August 20, 2026. https://ejournal-science.upi.edu/sigma/article/view/909.