Ibtisam Ahmed Abdu Al slam Aljhawe 2025. A Study on Vocabulary Deficiency and Its Impact on Students’ Academic Performance. مجلة جامعة بني وليد للعلوم الإنسانية والتطبيقية. 10, 4 (2025), 81–103. DOI:https://doi.org/10.58916/jhas.v10i4.953.