Yang, Liuqing. “Comprehensive Evaluation of Music Course Teaching Level Based on Improved Multi-Attribute Fuzzy Evaluation Model”. International Journal of Emerging Technologies in Learning (iJET) 15, no. 19 (October 5, 2020): pp. 107–121. Accessed August 8, 2022. https://online-journals.org/index.php/i-jet/article/view/17411.