BURGESS, R. A Tribute to Ogbu U. Kalu (1942-2009). PentecoStudies, [S. l.], v. 9, n. 1, p. 7–8, 2010. DOI: 10.1558/ptcs.v9i1.7. Disponível em: https://journal.equinoxpub.com/PENT/article/view/14265. Acesso em: 26 jan. 2022.