Osama Mohamed Ahmed Abdulwahab Ahmed (Osama Wdidi). An Evaluation of Two Parts in an ESP Textbook for Engineering Students: A Case Study of Sudan International University. IJLLT [Internet]. 2020 Dec. 30 [cited 2025 Sep. 28];3(12):162-71. Available from: https://al-kindipublishers.org/index.php/ijllt/article/view/798