AWASTHI, A.; SRIVASTAVA, S. K. A Fuzzy Soft Set Theoretic Approach in Decision Making of Covid-19 Risk in Different Regions. Communications in Mathematics and Applications, [S. l.], v. 12, n. 2, p. 285–294, 2021. DOI: 10.26713/cma.v12i2.1479. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/1479. Acesso em: 4 may. 2024.