Lu, Jianping, Siqi Zhang, Jiang Wu, and Yu Wei. “COPRAS Method for Multiple Attribute Group Decision Making under Picture Fuzzy Environment and Their Application to Green Supplier Selection”. Technological and Economic Development of Economy 27, no. 2 (April 9, 2021): 369-385. Accessed November 26, 2024. https://tede.vgtu.lt/index.php/TEDE/article/view/14211.