Xie Y. From Universities to Elite Universities: Heterogeneous Returns to Higher Education and the Sorting Mechanism in the Context of Higher Education Expansion in China. Best Evid Chin Educ [Internet]. 2020 Nov. 23 [cited 2026 Apr. 16];6(2):881-2. Available from: https://mail.bonoi.org/index.php/bece/article/view/301