Girma, Gosa. “Health Risk Associated With Handling of Contaminated Paper Currencies in Circulation: A Review”. American Scientific Research Journal for Engineering, Technology, and Sciences 10, no. 1 (September 21, 2014): 40–53. Accessed June 21, 2024. https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/696.