Afri, E., Manugeren, M., & Barus, E. (2026). Epistemic Values in Indonesian Language Classroom Interactions: An Analysis of Lecturer Speech Acts at a Politeknik Ganesha Medan. International Journal of Multidisciplinary Sciences and Arts, 5(1), 268–274. https://doi.org/10.47709/ijmdsa.v5i1.7125