Acar, Ö., T. Delen, and A. S. Özkapu. “NEW ASPECT FOR FIXED POINT THOERY ON ULTRAMETRIC SPACE”. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO) 16, no. 1 (June 30, 2025): 27–39. accessed September 2, 2026. https://ph03.tci-thaijo.org/index.php/jnao/article/view/3235.