“Some Interval-Valued Pythagorean Fuzzy Weighted Averaging Aggregation Operators and Their Application to Multiple Attribute Decision Making”, Punjab Univ. J. Math., vol. 50, no. 2, pp. 109–125, Jun. 2018, Accessed: Jun. 28, 2025. [Online]. Available: https://pujm.pu.edu.pk/index.php/pujm/article/view/133