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Siregar, E.F., Aissyah Octaweni and Rahmawati 2025. An Analysis of the Sigificance and Religious Purpose of Upah-Upah Tondi Tradition Contained in Batak Mandailing Tribe. International Journal of Educational Research Excellence (IJERE). 4, 2 (Sep. 2025), 813–817. DOI:https://doi.org/10.55299/ijere.v4i2.1501.