1. Anonymous. (1992). The wealth of India: A dictionary of Indian raw materials and industrial products (pp. 354–363). New Delhi: CSIR.
2. Franz, G. (1993). Pharmacology, 47, 2–6.
3. Agrawal, V., & Sardar, P. R. (2003). Physiology and Molecular Biology of Plants, 9, 131–140.
4. Siddique, I., & Anis, M. (2007). Acta Physiologiae Plantarum, 29, 233–238.
5. Siddique, I., & Anis, M. (2007). Medicinal and Aromatic Plant Science and Biotechnology, 1, 282–284.