GRENG, Pascal. Les sultanats kotoko du Cameroun septentrional: entre religion et tradition. Vestiges: Traces of Record, [S. l.], v. 11, n. 1, p. 284_300, 2025. DOI: 10.82319/vestiges.v11i1.377. Disponível em: https://vestiges.shox.bodleian.ox.ac.uk/vestiges/article/view/377. Acesso em: 7 mar. 2026.