Abou-Dan, M., S. Ashour, and H. Abou-Dan. “Conductometric Titration of Metformin in Pure Form and in Pharmaceutical Preparations Using Sodium Tetraphenylborate and Cetylpyridinium Bromide”. Asian Journal of Chemistry 13, no. 1 (March 30, 2010): 1–7. Accessed October 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/22518.