Tumanggor, O. B., Syafitri, W., Khairani, S., & Sinambela, L. (2025). Innovation in Language and Culture Preservation Through the Development of a Trilingual Digital Dictionary: Batak Toba – Indonesian – English. FOSTER: Journal of English Language Teaching, 6(2), 55-65. https://doi.org/10.24256/foster-jelt.v6i2.241