List of Articles Pythagorean fuzzy sets Open Access Article Abstract Page Full-Text 1 - Multidimensional Performance Assessment in Financial Contact Centers: An Interval-Valued Fuzzy Logic Approach to Debt Recovery Optimization Muhammad Kamran Muhammad Tahir Muhammad Farman Narzullayeva Umida Raxmatullayevna Aseel Smerat https://doi.org/10.71602/tfss.2026.1213066