Kabiru Muhammad, Aishatu Bello Mahmoud, Bara’atu Abubakar, and Sulaiman Mohammed. “THE WATER QUALITY AND FISH PRODUCTIVITY OF GOMBE ABBA RIVER”. International Engineering Journal For Research & Development, vol. 5, no. Special Issue, Sept. 2020, p. 7, doi:10.17605/OSF.IO/467ZU.