NGOR, Cornelius Iko-Awaji. Tone Nature of Nigerian English: An Acoustic Analysis. African Journal of Humanities and Contemporary Education Research, Nigeria, v. 15, n. 1, p. 399–415, 2024. DOI: 10.62154/e2bnwx92. Disponível em: https://afropolitanjournals.com/index.php/ajhcer/article/view/323.. Acesso em: 27 oct. 2026.