George, U. I., and J. E. Ifenyinwa. “CURRENCY NOTES AND ASSOCIATED RISK OF NEGLECTED TROPICAL DISEASES: STUDY ON THE NIGERIAN NAIRA”. International Journal of Research -GRANTHAALAYAH, vol. 7, no. 12, June 2020, pp. 252-8, doi:10.29121/granthaalayah.v7.i12.2019.319.