Sy Chung, L., 		Quoc Viet, N., 		Minh Tien, T., 		Minh Phuong, N., 		Sy Chinh, L., & 		Anh Hung, P.
(2024).
 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>.
doi:10.25073/2588-1094/vnuees.5208