(m, n)-Convexity-cum-Concavity on Fuzzy Soft Set with Applications in First and Second Sense. Punjab Univ. J. Math. [Internet]. 2025 May 12 [cited 2025 Jun. 29];53(1):19-33. Available from: https://pujm.pu.edu.pk/index.php/pujm/article/view/250