[1]
C. Ngumah, J. Orji, J. Akubuokwuoma, and U. Anoliefoh, “Impacts of different concentrations of Copper and Zinc on in vitro responses of Azotobacter chroococum in biomass and nitrogen fixing outputs”, Ecotoxicol. Environ. Contam., vol. 13, no. 1, pp. 79–83, May 2019.