Phuc, La, 		Tuat, Luong, 		Thom, Bui, 		Su, Nguyen, 		Duc, Vu, 		Anh, Bui, 		Minh, Nguyen, AND 		Hai Yen, Dang.
" New Archaeological Discoveries  in The Geological Formations and Heritages along the Ba River Ancient Valley" <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], Volume 36 Number 3 (25 September 2020)