Senthilkumar , B., and S. Mayavel. “Fixed Point Theorem of Generalized Contradiction in Partially Ordered Cone Metric Spaces”. International Journal on Future Revolution in Computer Science &Amp; Communication Engineering, vol. 5, no. 1, Jan. 2019, pp. 16 -, http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1828.