Stephen Kelvin Sata. “John Venn and the Genesis of Visual Logic: A Scholarly Exploration of the Venn Diagram’s Historical Development”. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, Vol. 5, no. 6, Dec. 2024, pp. 600-9, https://cajmtcs.centralasianstudies.org/index.php/CAJMTCS/article/view/703.