6K R Markham, B Ternai, R Stanley, et al. 13C-NMR Studies of Flavonoids ( Ⅲ ): Naturally Occurring Flavonoid Glycosides and their Acylated Derivatives. Tetrahedron, 1978,34 : 1389.
7Aurangzeb Hasan, Iftikhar Ahmad, Mir Ajab Khan, et al. Two Flavonol Triglycosides from Flower of Indigofera hebepetala.Phytochemistry, 1996,43(5) : 1115.