Peng, Juan-juan, Chao Tian, Wen-yu Zhang, Shuai Zhang, and Jian-qiang Wang. “An Integrated Multi-Criteria Decision-Making Framework for Sustainable Supplier Selection under Picture Fuzzy Environment”. Technological and Economic Development of Economy 26, no. 3 (June 2, 2020): 573-598. Accessed November 24, 2024. https://jcem.vgtu.lt/index.php/TEDE/article/view/12110.