Thi Hong Thao, P.; Thi Nhung, D.; Thi Huong, T.; Van Hieu, N.; Thi Hong Lien, N.; Mai Linh, N. V.; Hong Van, D. T.; Tuong Van, N.; Hoai Chau, N. Effects of Metal Nanoparticles of Iron, Copper and Cobalt on the Growth of Nitrogen-Fixing Bacterium Sinorhizobium Fredii T14 and Nodulation in Soybean Roots. Vietnam J. Biotechnol. 2021, 19, 725-733.