UsmanM. B., AaasaO. S., BalogunO. S., and YahayaU. F. “PROFITABILITY ANALYSIS OF MARKETING OF FROZEN FISH IN KADUNA METROPOLIS, KADUNA STATE, NIGERIA”. FUDMA JOURNAL OF SCIENCES, Vol. 4, no. 2, July 2020, pp. 577 -83, doi:10.33003/fjs-2020-0402-239.