The Role of Self Concept in Forming Students’ Self Confidence in Public Speaking. EJI (English Journal of Indragiri): Studies in Education, Literature, and Linguistics, [S. l.], v. 10, n. 1, p. 379–387, 2026. DOI: 10.61672/eji.v10i1.3353. Disponível em: https://ejournal-fkip.unisi.ac.id/eji/article/view/3353. Acesso em: 14 jan. 2026.