Djibril Kouankap Nono, Gus, et al. “A Gondwana Pre-Break up Related Magmatism in Bafoussam Area, West Cameroon: Source Characteristics and 40Ar 39Ar Geochronology”. International Journal of Advanced Geosciences, vol. 7, no. 1, May 2019, pp. 23-30, https://doi.org/10.14419/ijag.v7i1.21354.