1. Booth G (1984) Rev Prog Color 14:114
2. Booth G (1977) Rev Prog Color 8:1
3. Fierz-David HE, Blangey L (1949) Fundamental processes of dye chemistry. Interscience Publishers Inc, New York
4. Lubs HA (1955) The chemistry of synthetic dyes and pigments. Reinhold Publishing Corporation, New York
5. Groggins PH (1958) Unit processes in organic synthesis, 5th edn. McGraw Hill Book Company, New York