HUSSAIN, Abrar; LATIF, Sajid; ULLAH, Kifayat. A Novel Approach of Picture Fuzzy Sets with Unknown Degree of Weights based on Schweizer-Sklar Aggregation Operators. Journal of Innovative Research in Mathematical and Computational Sciences, [S. l.], v. 1, n. 2, p. 18–39, 2022. Disponível em: https://jirmcs.agasr.org/index.php/jirmcs/article/view/8.. Acesso em: 23 jul. 2026.