Mohanta, S. K. “FIXED POINTS VIA wt-DISTANCE IN b-METRIC SPACES ENDOWED WITH A GRAPH”. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), vol. 6, no. 2, Nov. 2016, pp. 31-42, https://ph03.tci-thaijo.org/index.php/jnao/article/view/2778.