Oluwajana, Oladotun, Abimbola Ogunyele, Joseph Egunjobi, and Aiyedotun Ajayi. “Subsurface Mapping and Geochemical Investigation of a Marble Deposit Around Igarra, Southwestern Nigeria”. International Journal of Advanced Geosciences 6, no. 2 (August 10, 2018): 209–213. Accessed May 2, 2024. https://www.sciencepubco.com/index.php/IJAG/article/view/13475.