PRIYANTO, AGUS. THE CORRELATION BETWEEN ENGLISH GRAMMAR COMPETENCE AND SPEAKING FLUENCY OF ELEVENTH GRADE STUDENTS IN SMAN 1 SIDOARJO. RETAIN : Journal of Research in English Language Teaching, [S. l.], v. 1, n. 1, 2013. Disponível em: https://ejournal.unesa.ac.id/index.php/retain/article/view/1847. Acesso em: 4 jan. 2026.