Gia Khanh B. 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 [Internet]. 2026 Jan. 27 [cited 2026 Oct. 21];71(1):58-69. Available from: https://hnuejs.edu.vn/ss/article/view/1203