Kehinde Oluyede & Urs Klötzli 2021. Provenance and Geological Setting of Syn-collisional Pan-African Granite in the Northern Part Birnin Gwari Schist Belt in NW Nigeria. Challenging Issues on Environment and Earth Science Vol. 7. (Aug. 2021), 99–124. DOI:https://doi.org/10.9734/bpi/ciees/v7/3208F.