MEGA, I. R.; SUGIARTO, D. Speaking Skill in Correlation with English Speaking Learning Habit and Self Confidence of Vocational High School Students. Journal of Foreign Language Teaching and Learning, [S. l.], v. 5, n. 2, p. 172–187, 2020. DOI: 10.18196/ftl.5253. Disponível em: https://journal.umy.ac.id/index.php/FTL/article/view/8640. Acesso em: 4 may. 2025.