AKIB, Rizal. FIRST LANGUAGE INTERFERENCE IN ENGLISH SPEAKING PERFORMANCE OF UNIVERSITY STUDENTS OF MUHAMMADIYAH SORONG (UMS). Qalam : Jurnal Ilmu Kependidikan, [S. l.], v. 6, n. 1, p. 22–32, 2018. DOI: 10.33506/jq.v6i1.249. Disponível em: https://ejournal.um-sorong.ac.id/index.php/jq/article/view/249. Acesso em: 4 may. 2024.