Dung, Nguyen Trung, Le Hoc Bau, Le Quang Thao, and Nguyen Dang Dat. “Extractive Spectrophotometric Methods for Determination of Ciprofloxacin in Pharmaceutical Formulations Using Sulfonephthalein Acid Dyes”. Vietnam Journal of Chemistry 55, no. 6 (December 31, 2017): 767. Accessed November 21, 2024. https://vjs.ac.vn/index.php/vjchem/article/view/2525-2321.2017-005341.