Ali, Khalid F., Kadhim M. Lazim, and Jumbad H. Tomma. 2017. “Synthesis ,Characterization and Study Biological Activity of Some New 1, 3, 4-Thiadiazole and Pyrazolone Derivatives Containing Indole Ring”. Ibn AL-Haitham Journal For Pure and Applied Sciences 27 (3): 421-34. https://jih.uobaghdad.edu.iq/index.php/j/article/view/307.