Dhakal, R. C., Rajbhandari, M., Kalauni, S. K., Awale, S. and Gewali, M. B. (2009) “Phytochemical Constituents of the Bark of Vitex negundo L”., Journal of Nepal Chemical Society, 23, pp. 89–92. doi: 10.3126/jncs.v23i0.2101.