B, Syamsinar. THE PROBLEMS IN PROFESSIONAL COMPETENCE OF TEACHERS IN TEACHING ENGLISH SUBJET AT VOCATIONAL HIGH SCHOOLS. ETERNAL (English, Teaching, Learning, and Research Journal), [S. l.], v. 1, n. 1, p. 98–111, 2015. DOI: 10.24252/Eternal.V11.2015.A5. Disponível em: https://journal.uin-alauddin.ac.id/index.php/Eternal/article/view/2404. Acesso em: 27 apr. 2025.