Purba, A. R., Situmorang, R. T. R., Siregar, A. J., & Tifany. (2025). Language Variation in Tradistional Ceremony of the Batak Toba: A Sociaolinguistic Analysis. Jurnal Pembelajaran Bahasa Dan Sastra, 4(6), 1535–1546. https://doi.org/10.55909/jpbs.v4i6.976