Dwi Yulianti, Qoeddri Farhansyah, Yani Lubis. THE ANALYSIS OF ENGLISH EDUCATION STUDENTS’ DIFFICULTIES IN PRONOUNCING ENGLISH VOWELS. CES [Internet]. 2024 May 31 [cited 2026 Jun. 24];2(2). Available from: https://cemarajournal.com/journal/index.php/ces/article/view/95