Malchik, Fedor, K. Tishenko, Svetlana Kalugina, and Andrey Kurbatov. “Potentiometric Determination of Peroxodisulfuric Acid During Electrolysis Sulfuric Acid”. Chemical Bulletin of Kazakh National University 72, no. 4 (September 14, 2013): 70-78. Accessed April 27, 2024. https://bulletin.chemistry.kz/index.php/kaznu/article/view/44.