DERUELLE, B., MOREAU, C., NKOUMBOU, C., KAMBOU, R., LISSOM, J., NJONFANG, E., GHOGOMU, R.T. and NONO, A. 1991. The Cameroon Line: a review. In A.B. Kampunzu and R.T. Lubala (eds), Magmatism in extensional structural settings. 274-327. Springer-Verlag, Ber

DERUELLE, B., MOREAU, C., NKOUMBOU, C., KAMBOU, R., LISSOM, J., NJONFANG, E., GHOGOMU, R.T. and NONO, A. 1991. The Cameroon Line: a review. In A.B. Kampunzu and R.T. Lubala (eds), Magmatism in extensional structural settings. 274-327. Springer-Verlag, Berlin.GRANT, N.K., REX, D.C. and FREETH, S.J. 1972. Potassium-argon ages and strontium isotope ratio measurements from volcanic rocks in northeastern Nigeria. Contributions to Mineralogy and Petrology, 35: 277-92.KOCH, P. 1959a. Notice explicative sur la feuille Garoua-Ouest. Carte Geologique de Reconnaissance à l'échelle du 1/500,000. (O52) République du Cameroun. Paris.