SUHARDIANTO, S.; MARTININGSIH, E.; PATTIASINA, P. J.; SHAUMIWATY, S. The Influence of Learning Motivation, Vocabulary Mastery, Self-Confidence, and Classroom Interaction on Students’ English-Speaking Ability. International Education Trend Issues, [S. l.], v. 4, n. 1, p. 19-29, 2026. DOI: 10.56442/ieti.v4i1.1513. Disponível em: https://ijble.com/index.php/ieti/article/view/1513. Acesso em: 17 jul. 2026.