Mazarbhuiya, F. A. ., M. . Shenify, J. . Kez, A. S. . Wungreiphi, and P. Rupa. “Correlation Coefficient of Interval-Valued Fuzzy Sets With Interval-Valued Reference Functions and Applications in Medical Diagnosis and Selecting Appropriate Mediciness”. Contemporary Mathematics, vol. 6, no. 2, Apr. 2025, pp. 2450-65, doi:10.37256/cm.6220256108.