“Derivative Spectrophotometric Method for Simultaneous Determination the Residue of Carboxin, Chlorothalonil and Pyriproxyfen in Cabbage Samples Using Zero-Crossing Technique ”. Academic Science Journal 1, no. 4 (October 1, 2023): 231–247. Accessed July 4, 2025. https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/60.