“HIGH ORDER THINKING SKILLS Penerapan Model Pembelajaran Pendidikan Matematika Realistik Indonesia Berbasis Budaya Batak Toba Pada Bangun Datar”, KJA, May 2025, Accessed: Mar. 21, 2026. [Online]. Available: https://kjaquatic.com/index.php/penerbitkamiyajayaaquatic/article/view/35