Ngumah C, Orji J, Akubuokwuoma J, Anoliefoh U. Impacts of different concentrations of Copper and Zinc on in vitro responses of Azotobacter chroococum in biomass and nitrogen fixing outputs. Ecotoxicol. Environ. Contam. [Internet]. 10 de mayo de 2019 [citado 24 de agosto de 2024];13(1):79-83. Disponible en: https://periodicos.univali.br/index.php/eec/article/view/12679