Shettima, B., B. Shettima, M. Bukar, B. Shettima, H. I. Kamale, A. O. Umaru, and I. A. Yerima. “Tidal Rhythmites Depositional System of the Cretaceous Yolde Formation of the Gongola Sub-Basin Northern Benue Trough N. E. Nigeria”. Journal of Geography, Environment and Earth Science International, Vol. 24, no. 5, July 2020, pp. 65-72, doi:10.9734/jgeesi/2020/v24i530228.