VILLANO, Renato A.; TRAN, Carolyn-Dung Thi Thanh. Technical efficiency heterogeneity of tertiary institutions in Viet Nam: a metafrontier directional technology approach. Technological and Economic Development of Economy, [S. l.], v. 25, n. 6, p. 1058–1080, 2019. DOI: 10.3846/tede.2019.7452. Disponível em: https://journals.vilniustech.lt/index.php/TEDE/article/view/7452. Acesso em: 13 may. 2025.