The effect of inside outside circle (IOC) model by using flashcards towards students’ English vocabulary mastery. Erudita: Journal of English Language Teaching, [S. l.], v. 1, n. 1, p. 54–64, 2021. DOI: 10.28918/erudita.v1i1.4303. Disponível em: https://e-journal.uingusdur.ac.id/erudita/article/view/298. Acesso em: 13 oct. 2026.