1. Liquid fruit seminar: a fruitful event;Anon;Beverage Review. Supplement to Food Review,1988
2. Billet , R. 1989 Prickly pears for potential profit Farmer's Weekly 53 55
3. Application of texture profile analysis to instrumental food texture evaluation;Breene;Journal of Texture Studies,1975
4. the prickly pear (Opuntia ficus indica) as a potential fruit crop for the drier regions of the Ciskei;Brutsch;Crop Production,1979