SUKH RAJ SINGH; R. D. DAHERIYA; RASHMI JAIN; MANOJ UGHADE. Fixed Point Theorem for Contractions of Rational Type in Ordered 2-Metric Spaces. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 2 - C, p. 133–147, 2016. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1054. Acesso em: 2 apr. 2026.