Danba, E. P. Comparative Study of Ectoparasites on Clarias Gariepinus and Tilapia Zilli Obtained from Kasuwan Bera of Kofai Area, Ardo Kola LGA, Mayo Gwoi, and Jalingo LGAs, Taraba State, Nigeria: Http: dx.doi.org 10.4314 njpar.V40i2.9. NJP 2019, 40, 175-180.