1. Anand, C.S., S.L. Shawarikar, and S.R. Agarwal 1972. The Antiseptic 68,4,257.
2. Arya, S.C. & Mohapatra, LN. 1966. J. Ind. Med. Assoc. 47, 369–72.
3. Cruick Shank, R. Medical Microbiology 1965 E. S. Livings tone Ltd. 11th edition, page 896.
4. Friedman, B. I. (1952) J. Laryngo & Otol. 66: 175.
5. Gulati, J. Tandon P.L., Waryan Singh, & A.S. Bais (1969) Ind. J. Otolaryngology, 31,4,198.