OKONKWO , C. A. Evaluation of Validity of Computer Based Test Items in NOUN. West African Journal of Open and Flexible Learning, [S. l.], v. 6, n. 2, p. 147–171, 2018. Disponível em: https://wajofel.org/index.php/wajofel/article/view/18. Acesso em: 7 may. 2024.