G. Djibril Kouankap Nono, “A Gondwana pre-break up related magmatism in Bafoussam area, west Cameroon: source characteristics and 40Ar/39Ar geochronology”, IJAG, vol. 7, no. 1, pp. 23–30, May 2019, doi: 10.14419/ijag.v7i1.21354.