Khaliq, Dr. Abdul, Khizar Mumtaz, and Ali Abbas. “Automatic Detection of Writing Proficiency Levels of Pakistani University Students Using NLP Techniques”. ACADEMIA International Journal for Social Sciences 5, no. 2(s1) (February 10, 2026): 157–169. Accessed June 21, 2026. https://academia.edu.pk/index.php/Journals/article/view/1872.