Ayeloja, A. A., et al. “Effect of Frozen Storage on Microbial Load of Hybrid Heteroclarias, Clarias Gariepinus and Oreochromis Niloticus”. Journal of Agriculture and Forestry University, vol. 4, no. 1, Oct. 2020, pp. 285-8, doi:10.3126/jafu.v4i1.47100.