1. I. Ali and M. Qaiser, Flora of Pakistan, Department of Botany, University of Karachi, Ferozesons Publishers, Karachi, 2001, p. 100, 97–103.
2. B. Shandesh, P. C. Ram, S. L. Robin, and K. G. Suresh, Nepal J. Sci. Tech., 10, 83 (2009).
3. K. Rehan, M. Abdul, A. Achyut, Q. Irfan, and I. C. Muhammad, Chem. Pharm. Bull., 57, 415 (2009).
4. K. Susumu, T. Michio, and M. Kazutoshi, Chem. Pharm. Bull., 44, 565 (1996).
5. K. N. Amna, F. Itrat, M. Abdul, and R. Huma, Helv. Chim. Acta, 94, 438 (2011).