“ Peningkatan Pemahaman Konsep Bangun Datar Segitiga melalui Pendekatan Realistic Mathematics Education di Kelas II SD” (2018) Indonesian Journal of Primary Education, 2(1), pp. 78–86. Available at: https://ejournal-tasikmalaya.upi.edu/ijpe/article/view/244 (Accessed: 28 September 2026).