Saptiany, S. G. ., Widagdo, C. S., Istifary, A. J., & Mustofa, A. (2025). Gamification with natural language processing: A pathway to improved English speaking for EFL students. Celtic : A Journal of Culture, English Language Teaching, Literature and Linguistics, 12(2), 1106–1120. https://doi.org/10.22219/celtic.v12i2.42320