WASET
    B. A. Lawal and  A. G. Ojanuga and  P. A. Tsado and  A. Mohammed,  Characterization, Classification and Agricultural Potentials of Soils on a Toposequence in Southern Guinea Savanna of Nigeria.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 77(5). 330 - 334
    [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/16905.