NYEIN, E. E.; KHAING ZAW, A. Quasi (s,r)-Contractive Multi-Valued Operators on b-Metric Space and Related Fixed Point Theorems. Journal of the Indonesian Mathematical Society, [S. l.], v. 26, n. 3, p. 393–402, 2020. DOI: 10.22342/jims.26.3.941.393-402. Disponível em: https://jims-a.org/index.php/jimsa/article/view/941. Acesso em: 30 apr. 2024.