Timoshik, J.V., and V.V. Petrenko. “Spectrofotometric Determination of Phenihidine in Tablets”. Farmatsevtychnyi zhurnal0, no. 3 (June 25, 2009): 64-69. Accessed September 24, 2021. https://pharmj.org.ua/index.php/journal/article/view/984.