Fawz Abdul Salam K.AL-Saffar, Abdul Razak K. Mahmood, and Najwa I. AL- Barhawi. “Comparison Between Various Strain from Klebsiella Pneumoniea on Nitrogen Fixation”. Tikrit Journal of Pure Science 21, no. 5 (February 6, 2023): 30–34. Accessed May 20, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/1024.