| Reference | AFENYA, P.M., 1982. GHAN* MINERAL RESOURCES FOR SMALL-SCALE MINING INDUSTRIES. IN: NEILSON, J.M. (COMPILER AND EDITOR), STRATEGIES FOR SMALL SCALE MINING AND MINERAL INDUSTRIES. ASSOC OF GEOSCIENTISTS FOR INTERNATIONAL DEVELOPMENT (IGID REPORT NO. 8), PP 24-3 |