Measurement of Gamma Radioactivity Level in Bedrocks and Soils of Quarry Sites in Ogun State, South-Western, Nigeria Okedeyi, A. S. ; Gbadebo, A. M. ; Arowolo, T. A. ; Mustapha, A. O. Abstract Publication: Research Journal of Physics Pub Date: February 2012 DOI: 10.3923/rjp.2012.59.65 Bibcode: 2012RJPh....6...59O