Rusmini R, Surya E. The Effect of Contextual Learning Approach to Mathematical Connection Ability and Student Self-Confidence Grade Viii Smp Negeri 8 Medan. IJSBAR. 2017;35(2):249-262. Accessed September 26, 2026. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7933