Team, Support. “Common Fixed Point and Coupled Coincidence Point Theorems for θ-ψ Contraction Mappings With Two Metrics Endowed With a Directed Graph: Phakdi Charoensawan, Tanadon Chaobankoh”. Thai Journal of Mathematics 15, no. 2 (August 1, 2017): 565–580. Accessed December 22, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/703.