Hafedh FR, Mohammed HH, Mageed ZN. Synthesis and Characterization of Novel Pyrimido [1,2-a] benzimidazole and its Derivatives. Al-Mustansiriyah Journal of Science [Internet]. 2022 Mar. 10 [cited 2024 May 5];33(1):15-20. Available from: https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/1020