GIA KHANH, Bui. GOVERNANCE IN NORTHWESTERN VIETNAM UNDER THE NGUYỄN DYNASTY (1802–1884): SEEN THROUGH THE THỔ QUAN (NATIVE OFFICIALS) – LƯU QUAN (IMPERIALLY APPOINTED OFFICIALS) POLICY. HNUE Journal of Science: Journal of Social Sciences, [S. l.], v. 71, n. 1, p. 58–69, 2026. DOI: 10.18173/2354-1067.2026-0006. Disponível em: https://hnuejs.edu.vn/ss/article/view/1203. Acesso em: 21 oct. 2026.