SRIVASTAVA, P.; MONDAL, R. A Hesitant Fuzzy Envelope Based Expert System in Human Decision Making. Nepal Journal of Mathematical Sciences, [S. l.], v. 2, n. 1, p. 1–6, 2021. DOI: 10.3126/njmathsci.v2i1.36503. Disponível em: https://www.nepjol.info/index.php/njmathsci/article/view/36503. Acesso em: 26 apr. 2024.