Dongping Xuan, Zhe Zhang, Wenyuan Sun. Research on the Stability of the Grade Structure of a University Title. int. j. eng. mgmt. res. [Internet]. 2019 Apr. 30 [cited 2026 Mar. 17];9(2):9-12. Available from: https://ijemr.vandanapublications.com/index.php/j/article/view/429