ARSHAD, Muhammad; SAEED, Muhammad; UR RAHMAN, Atiqe. Convexity cum concavity on refined fuzzy set with some properties. Uncertainty Discourse and Applications, [S. l.], v. 1, n. 1, p. 140–150, 2024. DOI: 10.48313/uda.v1i1.34. Disponível em: https://uda.reapress.com/journal/article/view/34.. Acesso em: 26 feb. 2026.