Phuong, Pham Thi Minh, Pham Huy Thong, and Le Hoang Son. “THEORETICAL ANALYSIS OF PICTURE FUZZY CLUSTERING: CONVERGENCE AND PROPERTY”. <i>Journal of Computer Science and Cybernetics</i> 34, no. 1 (August 8, 2018): 17–32. Accessed January 12, 2026. https://vjes.vast.vn/jcc/article/view/12725.