LI, J.-Y.; YANG, J.-W.; KIM, H.-H. . A Study on the Efficiency of China’s Express Industry Based on Three-Stage SBM Model. International Journal of Innovative Research and Scientific Studies, [S. l.], v. 5, n. 3, p. 249–257, 2022. DOI: 10.53894/ijirss.v5i3.678. Disponível em: https://ijirss.com/index.php/ijirss/article/view/678. Acesso em: 25 apr. 2024.