Lubis, F., Nathanael, K., Samosir, N. D., Regar, S. G. B., Maharani, W. A., & Khairunnisha, Z. (2023). Language Proficiency in Standard and Non-Standard Language Among Students of The Faculty of Economics, State University of Medan. EDUCTUM: Journal Research, 2(6), 164–167. https://doi.org/10.56495/ejr.v2i6.406