Subramaniam, K. B. and Thomas, A. (2025) “Proof Without Words: a^2-b^2=(a+b)(a-b)”, Ohio Journal of School Mathematics, 99(1), p. 5. vailable at: http://voyager.janeway.systems:9999/index.php/OJSM/article/view/10523 (ccessed: 7 November 2026).