1. Deep structures of alkaline ring complexes from geophysical data;Ajakaiye,1983
2. The petrology and mineral chemistry of the Shira ring complex, Northern Nigeria;Bennett,1981
3. Magmatic evolution and mineralisation in the Nigerian Younger Granite province;Bowden,1982
4. The geochemistry and mineralization of alkaline ring complexes in Africa;Bowden;J. Afr. Earth Sci.,1985
5. Younger Granites of Nigeria—A zinc-rich tin province;Bowden;Trans. Inst. Mining Metall. B,1978