Ndubuisi, O., I. Iheukwumere, E. U. G, E. A. Otutu, and A. K. Victor. “Evaluation of Micro-Pathogens Associated With Nigerian Currency (Naira Notes)”. World Scientific Research, vol. 3, no. 1, Dec. 2016, pp. 16-22, doi:10.20448/journal.510/2016.3.1/510.1.16.22.