1. Official Methods of Analysis,1999
2. Standard methods for examination of dairy products,1978
3. Automated impedance measurements for rapid screening of milk microbial count;Cady;Journal of Food Protection,1978
4. Chuaprasert, S. (1984). Quality aspects of raw milk in Thailand. Masters of Science thesis No. 84-13, Asian Institute of Technology, Bangkok, Thailand.
5. Collaborative study of the bactoscan—an automated method for determination of total bacteria in raw milk;Cunningham;Canadian Institute of Food Science and Technology Journal,1988