Dr. Rehab Abdelsalam Elsanousi, Dr. Mahdi Hamad Elballa Hamad, & Abdelrahman Mohammedain Abdelrahman Ahmed. (2021). Investigating of ESP Vocabulary Difficulties Encountered by EFL Learners. White Nile Journal for Studies and Research, (18), 103–122. Retrieved from https://journals.wnu.edu.sd/index.php/wnjsr/article/view/110