REFERENCES
Cao shu, L. C. 1988: Odontites in Wu, Zhengyi & Peter H. Raven (eds.), Flora of China..Vol. 18 (Scrophulariaceae through Gesneriaceae). -Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis.
Golubkova, V. F. 1955: Odontites in B. K. Shishkin & E. G. Bobrov (eds), Flora of the USSR. Vol. 22: 649-657. -Moskva & Leningrad.
Kaplan, A. 1999: The anatomic studies of Turkish Rhinantheae (Scrophulariaceae) tribe. Unpublished PH. D. thesis.- Ankara University, Turkey, Ankara.
Metcalf, C. R. & Chalk, L.1957: Anatomy of the Dicotyledones. Vol.II: 978-988. -Oxford at the clarendon press.
Rechinger, K. H.1981: Odontites in K. H. Rechinger (ed.), Flora Iranica 147: 187-189.- Graz.
Webb, D. A. & Camarasa, J. M. 1972: Odontites in T. G. Tutin & al (ed.), Flora Europaea, Vol.3: 266-269. -Cambridge.