1. Cogan T.M. and Hill C., Cheese starter cultures, Ch.6 in: P.F. Fox, ed., Cheese: Chemistry, Physics and Microbiology, Vol. 1, General Aspects, 2nd ed., pp. 193-206. Chapman and Hall, London (1993).
2. Heap H. A. and Lawrence R.C., New Zealand J. Dairy Technol., 11-16 (1976).
3. Tamime A. Y. and Robinson R.K., Preservation and production of starter cultures., in : Yoghurt, Science and Technology., pp. 486-514. CRC Press, New York and Woodhead Pub. Ltd., Cambridge, UK (1999).
4. de Vuyst L., Food Technol. Biotechnol., Application of Functional Starter Cultures, 38, 2, 105–112 (2000).
5. Yadav H., Jain S. and Sinha P.R., J Dairy Res., 75, 189-95 (2008).