D. S. Ali and W. M. Ibrahim, “Batch and Reverse Flow Injection Spectrophotometric Determination of Nicotine”, SJUOZ, vol. 4, no. 2, pp. 217–225, Dec. 2016, Accessed: Dec. 20, 2025. [Online]. Available: https://www.sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/354