Muhsin, F.A.-R. (2014) “Comparability Study between Digital and Visual Colorimeter by using of Chlorine Indicators of DpD No.1 and DpD No.3 under practical conditions”, Al-Kufa University Journal for Biology, 6(1). Available at: https://journal.uokufa.edu.iq/index.php/ajb/article/view/8184 (Accessed: 8 August 2026).