V. L. JAYAPAUL; S. BLESSWIN. Effectiveness of Flipped Learning Approach in Teaching English Grammar: An Empirical Study. Journal of English Language Teaching, Chennai, India, v. 65, n. 3, p. 3–10, 2023. DOI: 10.66121/f5c18z14. Disponível em: https://journals.eltai.in/jelt/article/view/JELT650302. Acesso em: 12 mar. 2026.