Muhdiati, Siti, Wahyu Sopandi, Atep Sujana, Innaka Arina Haq, and Ali Juma Khomis. “Enhancing Sixth Graders’ Mathematical Communication Skills Using the RADEC Learning Model: A Focus on Ratio Concepts”. AL-ISHLAH: Jurnal Pendidikan 17, no. 3 (September 24, 2025): 4639–4654. Accessed November 11, 2026. https://www.journal.staihubbulwathan.id/alishlah/article/view/6721.