Comparison between various strain from Klebsiella pneumoniea on Nitrogen fixation. Tikrit Journal of Pure Science, [S. l.], v. 21, n. 5, p. 30–34, 2023. DOI: 10.25130/tjps.v21i5.1024. Disponível em: https://tjpsj.org/index.php/tjps/article/view/1024. Acesso em: 12 nov. 2026.