Hussain, A. et al. 2022. 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. 1, 2 (Dec. 2022), 18–39. DOI:https://doi.org/10.62270/jirmcs.v1i2.8.