UDOH, Ememobong; AKPAN, Okokon; ASIM, Mercy. Post-Lexical Vowel Deletion in Obolo. Journal of the Nigerian Languages Project, [S. l.], v. 1, 2019. Disponível em: https://jnlp.com.ng/index.php/home/article/view/1. Acesso em: 7 may. 2024.