Azzahra, Sekar, Jelly Prima Krisnawati Silaban, and Tengku Silvana Sinar. 2024. “Text Complexity in Digital Language Learning: Analyzing the Readability and Lexical Density of Duolingo’s Guidance Textbook”. Lexeme : Journal of Linguistics and Applied Linguistics 7 (1):29-36. https://doi.org/10.32493/ljlal.v7i1.44985.