“Synthesis , Characterization , and Study of the Spectral and Electronic Properties of a New Azo Dyes Compounds”. University of Thi-Qar Journal of Science 4, no. 1 (September 2, 2013): 91–101. Accessed November 21, 2024. https://jsci.utq.edu.iq/index.php/main/article/view/561.