Thi Hoang Oanh, Le, 		Dang Anh, Nguyen, 		Van Quang, Pham, 		Huu Huan, Nguyen, AND 		Ha, Nguyen Thi.
" The Effect of Fertilizer use on Nitrate and Metal Content  in Dong Du Mustard Green (Brassica campestris L.)" <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], Volume 41 Number 2S (15 November 2025)