WASET
    T. T. Olugbenga and  A. I. Augie,  Estimation of Crustal Thickness within the Sokoto Basin North-Western Nigeria Using Bouguer Gravity Anomaly Data.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2020, vol. 165(9). 247 - 252
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10011468.