Bioprocess development for high cell density cultivation of Rhizobium trifolii in semi-industrial scale stirred tank bioreactor by Othman, N. Z., Wei, Chang, H., Then, C., Abd. Malek, R., Sarmidi, Mohamad Roji, Aziz, Ramlan, Wan Mustapha, W. A., Ali El-Enshasy, Hesham Ali Metwally Ali El-Enshasy