Plubtieng, Somyot, Poom Kumam, Sompong Dhompongsa, and Phachara Saiparae. 2022. “On the Result of P-Contraction Operators”. Nonlinear Convex Analysis and Optimization: An International Journal on Numerical, Computation and Applications 1 (2):113-29. https://bangmodjmcs.com/index.php/ncao/article/view/80.