Arunchai, A., Suppalap, S. and Tapanyo, W. (2018) “BEST PROXIMITY POINTS INVOLVING SIMULATION FUNCTIONS WITH $(\tau)$-DISTANCE”, Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), 9(2), pp. 115–127. available at: https://ph03.tci-thaijo.org/index.php/jnao/article/view/2874 (accessed: 2 September 2026).