Siagian, Gunaria, Yohandri Yohandri, and Abdul Razak. “Integration of Dalihan Natolu’s Local Wisdom in the Sets Learning Model to Improve Student’s Problem Solving Ability”. AL-ISHLAH: Jurnal Pendidikan 16, no. 3 (September 30, 2024): 4164–4175. Accessed October 12, 2026. https://www.alishlah.ahfpublishing.id/alishlah/article/view/4161.