NGUEMO GATIEN ROMUALD, Kenfack et al. New Discriminant Functions and Geochemistry of the Mamfe Cretaceous Formations (South West Cameroon). International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 48, n. 3, p. 37–51, 2019. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/10315. Acesso em: 15 sep. 2025.