Agayev, M. 1996: Advanced squash method for investigation of plant chromosomes. -Institute of Genetics and Selection. Baku 370106. Azarbaijan Republic. 1-20.
Bor, N. L. 1970: Nardurus (Bluff, Nees & Schauber) Reichenb. in Gordon in K. H. Rechinger Flora Iranica, no. 70: 50-51. -Akademische Druch-u. Verlagsanstalt, Graz.
Stace, C. A. 1985: Vulpia C. C. Gmelin and Loloilum V. Krecz. & Bobrov in P. H. Davis Flora of Turkey and the East Aegean Islands, vol. 9: 451-461. -Edinburgh University Press, Edinburgh.
Parsa, A. 1950: Nadurus in Flore de L”Iran, vol. 5: 750-752. -Publication du Ministere de L” Education Museum d” Histoire Naturelle de L” Tehran, Tehran.
Rohlf, F. J. 1997: NTSYS-pc version 2.2. Numerical Taxonomy and Multivariate. Analysis System Exter Publ. New York.
Sharma, A. & Sharma, A. 1999: Plant chromosome. -Harwood Academic Publishers. Australia. 17-19.
Stace, C. A. 1978: Changing concepts of the genus Nardurus Reichenb. (Gramineae). Flora Europaeae. Notulae systematicae (ed. Heywood, V. H.). 20: 344- 350.
Stebbins, G. L. 1971: Chromosomal evolution, higher plants. -Edvard Arnold Publishers. London.