Mahamadiyeva Aziza Sherali qizi and Tursinova Sokhiba Ravshon qizi, Khojakulova Nozima Abduhamid qizi (2026) “DIVISIBILITY RULES FOR 13: MATHEMATICAL PROOFS AND PRACTICAL ALGORITHMS”, Ethiopian International Multidisciplinary Research Conferences, 3(2), pp. 108–109. Available at: https://www.eijmr.org/conferences/index.php/eimrc/article/view/2234 (Accessed: 13 June 2026).