Hafedh, Fadhel R., Hamid H. Mohammed, and Zainab N. Mageed. 2022. “Synthesis and Characterization of Novel Pyrimido [1,2-A] Benzimidazole and Its Derivatives”. Al-Mustansiriyah Journal of Science 33 (1):15-20. https://doi.org/10.23851/mjs.v33i1.1020.