Zeleke, Digafie, and Ayana Yadessa. “Development in the Synthesis, Topoisomerase I Inhibitor and Cytototoxic Properties of Indenoisoquinoline and Its Analogs: Review”. Ethiopian Journal of Science and Sustainable Development 8, no. 1 (January 6, 2021): 73-93. Accessed January 31, 2025. http://213.55.101.19/index.php/EJSSD/article/view/314.