From

X-Ray Fluorescence Base Investigation of the Gwon-Gwon Pegmatite Field Wamba, Northcentral, Nigeria

Abdullahi A.M, Haruna A.I, Usman A.M, A. S. Arabi

Journal of Geosciences and Geomatics. 2017, 5(1), 37-45 doi:10.12691/jgg-5-1-4