Hamid, Roaa Majid Abdul-Amir. “Synthesis of New Beta-Lactam , 2-Thioxoimidazolidin-4-One and Imidazole-5-One Derivatives from Thiosemicarbazide and Their Biological Activity Study”. Ibn AL-Haitham Journal For Pure and Applied Sciences, vol. 30, no. 2, Sept. 2017, pp. 84-99, https://jih.uobaghdad.edu.iq/index.php/j/article/view/1455.