Valentina, A., Trya Minda Insari and Dhea Yuniar Yuninta 2025. A Comparative Sociolinguistic Analysis of Indonesian and Local Language Use: Evidence from Public and Islamic Boarding Schools in Gunungputri. JPI : Jurnal Pustaka Indonesia. 5, 1 (Aug. 2025), 16-24. DOI:https://doi.org/10.62159/jpi.v5i1.1772.