Akib R. FIRST LANGUAGE INTERFERENCE IN ENGLISH SPEAKING PERFORMANCE OF UNIVERSITY STUDENTS OF MUHAMMADIYAH SORONG (UMS). Qalam [Internet]. 2018 Dec. 15 [cited 2024 May 4];6(1):22-3. Available from: https://ejournal.um-sorong.ac.id/index.php/jq/article/view/249