1-British herbal pharmacopoeia , (1983) :96 .
2-PDR for herbal medicines ,Fourth edition (2008):394.
3-Weiss R.F., Fintelmann v., Herbal medicine , (2000):128 , 414 .
4-Ebadi M., Pharmacodynamic basis of Herbal Medicine , Second ed.:133 .
5-Zargari A. medicinal plants , forth ed., Vol II : 8 – 9 .
6-The Complete German Commission E Monographs , Therapeutic guide to herbal medicines , (1998): 332 – 333 .
7- Paris R.P,Mouyse H.: Precs de matiere medical , (1967) ,Vol II : 346 . 
