A. Abdulrahim, M. D Shehu, E Yisa, and Z. A. Ishaq. “Mathematical Models and Comparative Analysis for Rice and Soya Bean Irrigation Crop Water Needs: A Case Study of Bida Basin Niger State, Nigeria”. Journal of the Nigerian Society of Physical Sciences, vol. 3, no. 4, Nov. 2021, pp. 354-9, doi:10.46481/jnsps.2021.149.