1. The biosynthetic capacity of the active principles of “in vitro” regenerated Solenostema argel (SEL). Hayne. callus and shoots;Amariei;Rev. Roum. Biol. Veget., Bucharest,1991
2. Structure determination of alloglaucotoxigenin;Brandt;Helv. Chim. Acta,1966
3. El-Hadidi, M.N., Abdel-Aziz, F., 1994. Tackholmia, materials for Excursion Flora of Egypt (EFE), Vol. 15. El-Manar El-Arabi Printhouse, Cairo, 118.
4. Spot Tests in Organic Analysis;Feigl,1956
5. Jafri, S.M.H., El-Gadi, A. (Eds.), 1977. Flora of Libya. Asclepiadaceae, Vol. 9. Al-Fateh University, Tripoli.