Jubaidah, S., & Mandasari, L. (2025). Comparison of Ethnomathematical Concepts in Mosque Architecture in North Sumatra: A Case Study of Al-Mashun Grand Mosque and Al-Osmani Grand. Jurnal Riset Pendidikan Dan Inovasi Pembelajaran Matematika, 9(2), 118–142. https://doi.org/10.26740/jrpipm.v9n2.p118-142