1. Gravity measurements over the Nigerian Younger Granite Province;Ajakaiye;Nature,1970
2. Gravity survey across the Quaternary-Basement areas of Kano state, Nigeria, (Abstract);Ajakaiye;J. Min. Geol. (Nig.),1977
3. Evolution polycyclique des Gneiss Precambriens de I'Aleksod Hoggar Central (Sahara Algerien). Aspects Structuraux, Petrologiques, Geochimiques et Geochronologiques. These, Montpellier, ed. C.N.R.S., Collection C.R.Z.A.;Bertrand;Ser. Geol.,1974
4. Geodynamic evolution of the Pan-African orogenic belt: a new interpretation of the Hoggar Shield (Algerian Sahara);Bertrand;Geologische Rundschau,1978