Gacuiga, Martha W., et al. “Alcohols and Denaturants Hand Rub Sanitizers Used to Curb COVID-19 Pandemic in Kiambu County, Kenya”. International Journal of Scientific Research in Chemical Sciences, vol. 9, no. 3, June 2022, pp. 1-5, https://ijsrcs.isroset.org/index.php/j/article/view/113.