M. SANKARA NARAYANAN; M. MENAKA; M. MARUDAI. Common Fixed Point of Three Contractive Type Mappings. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 4 - A, p. 89–94, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1242. Acesso em: 20 may. 2024.