1. Herbal Drugs and Phytopharmaceuticals: A Handbook for Practice on a Scientific Basis;Bisset,1994
2. World Health Organization. Monographs on Selected Medicinal Plants, vol. 1: Flos Chamomillae. WHO, Geneva, 1999. p. 86.
3. Evaluation of Antiinflammatory Activity of a Chamomile Extract after Topical Application
4. Methods in Plant Biochemistry: Plant Phenolics;Harborne,1989