Singh, S. L., Pant, B. D., & Chauhan, S. (2012). FIXED POINT THEOREMS IN NON-ARCHIMEDEAN MENGER PM-SPACES. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), 3(2), 153–160. retrieved from https://ph03.tci-thaijo.org/index.php/jnao/article/view/2667