Kez, Janet, and Fokrul Alom Mazarbhuiya. “Exploring the Correlation Coefficient of Bipolar Complex Fuzzy Sets for Pattern Recognition”. Communications in Mathematics and Applications 17, no. 1 (March 30, 2026): 65–78. Accessed May 28, 2026. https://rgnpublications.com/journals/index.php/cma/article/view/3440.