Kharchenko, Anastasia Yu., Maria A. Romakh, Karolina V. Yanova, Marina N. Tereshchuk, and Nikolay O. Mchedlov-Petrossyan. “Aqueous Solution of Poly (hexamethylene Guanidine Hydrochloride) and Poly (diethylenamine Guanidine Hydrochloride) As Studied With Acid-Base Indicators”. Kharkiv University Bulletin. Chemical Series0, no. 33 (December 27, 2019): 65-76. Accessed April 26, 2024. https://periodicals.karazin.ua/chemistry/article/view/15586.