Yongguo Lv, Chenglian Liu, Tian Huang. “Research on the University Library Anonymous Customer Complaint System Based on Blockchain Technology”. Design Engineering 2021, no. 02 (April 17, 2021): 681 - 689. Accessed May 18, 2024. http://thedesignengineering.com/index.php/DE/article/view/1239.