1. Ikeda, Y.; Takahashi, E.; Yokogawa, K.; Yoshimura, Y.: J. Ferment. Technol., 50, 36 (1972)
2. Hadi, T.A.; Banerjee, R.; Bhattacharyya, B.C.: ?Optimization of tannase biosynthesis by a newly isolated R. oryzae?. Bioprocess Engg. 11, 239 (1994)
3. Chen, T.: Thesis of Biochem. Univ. of California Ph.D. Berkley, 1969
4. Iibuchi, S.; Minoda. Y.; Yamade. K.: ?Study of acyl hydrolase of microorganism III. A new method determining the enzyme activity using a change in ultra violet absorption?. Agric Biol. Chem. 31, 513 (1966)
5. Hadi. T.A.: M. Tech. Thesis, IIT Kharagpur (1993)