Sy Chung, Le, 		Quoc Viet, Nguyen, 		Minh Tien, Tran, 		Minh Phuong, Nguyen, 		Sy Chinh, Le, AND 		Anh Hung, Pham.
" Using Biochar to Improve Soil Fertility and Productivity  of Drought-Tolerant Sweet Potatoes  in Thanh Hoa Coastal Sandy Soil" <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], (24 October 2024)