1. Zhang EQ. Prescriptions of traditional Chinese medicine. Shanghai: Shanghai TCM College Press, 1990:10–6.
2. Bensky D, Barolet R. Chinese herbal medicine: formulas and strategies. Seattle: Eastland Press, 1990:14–5.
3. Zhu Y-P. Development of Chinese materia medica in perspective. In: Su ZW, Qiao CZ, editors. Pharmacognosy. Shanghai: Shanghai Medical University Press, 1989:4–9.
4. Huang SB, Chen CM. Herbology. Nanjing: NIT Press, 1988: 43–5.
5. Maciocia G. The foundations of Chinese medicine. Edinburgh: Churchill Livingstone, 1989:1–528.