Ummah khoiratul, Mohammad Sofyan Adi Pranata. THE PROBLEMATIC NATURE OF ENGLISH TEACHERS’ WEEKNESS TO IMPROVE STUDENT ACHIEVEMENT. jedu [Internet]. 2026 Jul. 27 [cited 2026 Jul. 31];6(2):80-91. Available from: https://newjournal.unindra.ac.id/index.php/jedu/article/view/1819