1. Geochemistry and petrology of mineralisation at Ririwai, Gindi, Akwati and Dutsen Wai in the Nigerian Younger Granite Province;Abba,1976
2. Some chemical and petrographic aspects of mineralisation in the Ririwai biotite granite, Nigeria;Abba,1978
3. Correlation between Sn and Zn values in some rocks from the Nigerian Tin Province;Abba,1979
4. The geology, geochemistry and petrogenesis of the Mada Younger Granite Complex, Plateau State, Nigeria;Abba,1982
5. Tin-Zinc mineralisation in the Younger Granite Province of Nigeria;Abba;Nigerian J. nat. Sci.,1982