CHOUDHURY, B. S.; METIYA, N.; KONAR, P. EXISTENCE AND UNIQUENESS OF COUPLED BEST PROXIMITY POINT IN PARTIALLY ORDERED METRIC SPACES. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), [S. l.], v. 7, n. 1, p. 145–153, 2016. Disponível em: https://ph03.tci-thaijo.org/index.php/jnao/article/view/2820. Acesso em: 2 sep. 2026.