Hasan, M.K. , Zengin, R. , Basmaz, M. , Hossain, M.T. , Hoque, M.S. and Mohiuddin, M.G. 2026. Lexical Diversity, Density, and Word Frequency in CEFR A2 ELT Coursebook Reading Texts in Turkish Higher Education: A Corpus-Based Comparative Analysis of Three Coursebooks. International Journal of Learning, Teaching and Educational Research. 25, 5 (May 2026), 734–755.