Al-Eisawi, D & Jury, S. L. 1988: A taxonomic revision of the genus Tordylium L. (Apiaceae). -Botanical Journal of the Linnean Society 97 (4): 357-403.
Amin, G. & Salehy Surmaghy, M. H. 1995: Kozal a new phototoxic plant. -Proceeding of the 4th international congrees of poisoning plants, Tehran-Iran.
Cerceau-Larrival, M. T. 1971: Morphologie pollinique et correlations phylogenetiques chez les urnbelliferous. In Heywood, V. H (ed): The biology and chemistery of the Umbelliferae. 109-155. -Acadamic Press.
Cerceau-Larrival & Ronald-Heydacker, F. 1976: The evolutionary significance of the ultra structure of the exine in Umbelliferae pollen grains. In Ferguson & Muller (ed.): The Evolutionary significance of the exine: 481-498. -London Academic Press.
Davis, P. H. 1972: Umbelliferae. in Flora of Turkey and East Aegean Islands 4: 404. -Edinburg University Press.
Erdtman, G. 1952: Pollen morphology and plant taxonomy. Angiosperms. -Almqvist & Wiksell Stockholm.
Erdtman, G. 1960: The acetolysis method. -Svensk. Bot. Tidskr. 54: 561-564.
Erdtman, G. 1969: Hand book of palynology. Copenhagen: Munksgard.
Harkiss, K. J. & Salehy Surmaghy, M. H. 1987: Volatiles from the root of Diplotaenia cachrydifolia, the first natural source of 6-camphenone. -Journal Natural Products. 50 (5): 991-993.
Hebeda, A. 1985: Pollen morphology of Ligusticum (Apiaceae) in Canada. Canadian Journal Botany. 63 (10): 1880-1887.
Hedge, I. C & Lamond, J. M. 1987: Umbelliferae. In Rechinger, K.H (ed) Flora Iranica, 162: 372-374. -Graz Akademische Druck-Und.
Nair, P. K. & Kapour, S. K. 1973: Pollen morphology production of Daucus carota. -Journal of Palynology 9 (2): 152-159.
Tawoda, O. 1982: Taxonomy of some species of the family Apiaceae by the morphology of their pollen grains. -Biologia 37 (1): 89-97.
)
