1. Microbiological quality of milk from two processing plants in Gaborone Botswana
2. Synergism between Ultrasonic Waves and Hydrogen Peroxide in the Killing of Micro-organisms
3. Anonymous, Regulations relating to milk and dairy products. Foodstuffs, Cosmetics and Disinfectant Act, 1972, Act no. 54 of 1972, G.N.R. 1555/1997, Lex Patria Publishers, Johannesburg, South Africa.
4. Anonymous, Dairy Processing Handbook, Tetra Pak Processing Systems AB, Lund, 2003.