1. Bollard, E. G. (1970). Physiology and nutrition of developing fruits. In:The biochemistry of fruits . and their products(Hulme, A. C., Ed.), Academic Press, London and New York, 387–425.
2. Davies, D. H. (1965). Analysis of carotenoid pigments, In:Chemistry and biochemistry of plant pigments(Goodwin, T. W., Ed.), Academic Press, London and New York, 489–532.
3. Duckworth, R. B. (1966).Fruits and Vegetables.Pergamon Press, Oxford.
4. Holden, M. (1965). Analytical Methods: Chlorophylls. In:Chemistry and biochemistry of plant pigments.(Godwin, T. W., Ed.), Academic Press, London and New York, 461–88.
5. Howrtiz, W. (1975).Official methods of analysis.Association of Official Analytical Chemists, Washington, D.C.