Ying Zhong, Yanyan Yao and Xiaoting Huang (2025) “Bipolar Pythagorean Neutrosophic Aggregation Operator for Voice of the Guest: Evaluating Hotel Management Service Quality through Customer Feedback ”, Neutrosophic Sets and Systems, 87, pp. 1063–1072. Available at: https://fs.unm.edu/nss8/index.php/111/article/view/6776 (Accessed: 21 July 2025).