Harahap, Sinar Depi, Marzuki Ahmad, and Joni Winra Pasaribu. “The Development of HOTS Questions Based on Ethnomathematics to Measure Students’ Mathematical Problem-Solving Abilities”. Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran 10, no. 2 (June 22, 2024): 553–564. Accessed November 20, 2025. https://ojspanel.undikma.ac.id/index.php/jurnalkependidikan/article/view/11511.