Oanh, Dr. Dang Thi, and Bui Quynh Trang. “The Participation of Black Ha Nhi People in Y Ty, Lao Cai Province For Local Sustainable Tourism Development”. RA Journal Of Applied Research 9, no. 6 (June 12, 2023): 336–344. Accessed November 21, 2024. http://rajournals.in/index.php/rajar/article/view/1187.