Mahmood, Najmulddin Shamsuldeen, and Rozhgar Jalal Khidhir. “Investigating the Barriers to EFL Teachers’ Professional Development in Erbil High Schools”. JOURNAL OF LANGUAGE STUDIES 5, no. 2 (October 8, 2023): 413–430. Accessed October 13, 2025. https://jls.tu.edu.iq/index.php/jls/article/view/520.