1. Other fermented dairy products;Bottazzi,1983
2. Presence and activity of psychritrophic microorganisms in milk and dairy products: a review;Cousin;J. Food Protect,1982
3. Cold-tolerant yeasts and yeast-like organisms;Davenport,1980
4. The microbiology of yogurt;Davis,1975
5. The microbiological examination and grading of ice-creams manufactured in Ghana;De Graft-Johnson;Ghana J. Agric. Sci.,1974