KUMAR, Pawan. A Study of Coupled Fixed Points in Matrix-Valued Metric Spaces. Revista Review Index Journal of Multidisciplinary, [S. l.], v. 6, n. 2, p. 52–58, 2026. DOI: 10.31305/rrijm2026.v06.n02.009. Disponível em: https://www.rrijm.com/index.php/RRIJM/article/view/269.. Acesso em: 17 sep. 2026.