WITA, Nera; ROZA, Veni. The Effectiveness of Inside-Outside Circle Technique in Teaching Speaking at Vocational High School. FOSTER: Journal of English Language Teaching, [S. l.], v. 3, n. 2, p. 101–112, 2022. DOI: 10.24256/foster-jelt.v3i2.65. Disponível em: https://foster.pbi-iainpalopo.ac.id/index.php/contents/article/view/65. Acesso em: 4 oct. 2026.