1. Creed, E. ff. (1938). J. Path. Bact., 46, 331.
2. Suess, J., Limentani, D., Dameshek, W., and Dolloff, M. J. (1948). Blood, 3, 1290.
3. Practical Haematology;Dacie, J.V.,1956
4. Pakistan Soya and jack beans are commonly used for the preparation of urease in the estimation of blood urea but Damodaran and Sivaramakrishnan;College, From Dacca Medical,1937
5. The presence of urease in the soya bean (Soja) was