Aliabadian, M.; Nijman, V. (2007). Avian hybrid: incidence and geographic distribution of hybridization in birds. Contribution to Zoology; 76: 59-61.
Aliabadian, M.; Roselaar C.S.; Nijman, V.; Sluys, R.; Vences, M. (2005). Identifying contact zone hotspots of passerine birds in the Palaearctic region. Biology Letters, 1: 21-23.
Asokan, S.; Mohamed Samsoor Ali, A.; Manikannan, R.; Thomas Nithiyanandam, G. (2010). Population densities and diurnal activity pattern of the Indian Roller Coracias benghalensis (Aves: Coraciiformes) in Nagapattinam District, Tamil Nadu, India. Journal of Threatened Taxa; 2(10): 1185-1191.
Asokan, S.; Mohamed Samsoor Ali, A.; Manikannan, R. (2009). Preliminary investigations on diet and breeding biology of the Indian Roller Coracias benghalensis in a portion of Cauvery Delta, Tamil Nadu, India. World Journal of Zoology, 4 (4): 263-269.
Cramp, S. (Ed.) (1985) The birds of the western Palearctic. Vol IV. Terns to Woodpeckers. Oxford University Press, Oxford.
Farashi, A; Shariati, M. (2017). Biodiversity hotspots and conservation gaps in Iran. Journal for Nature Conservation; 39: 37-57.
Fry, C. H.; Fry, K. (1999). Kingfishers, Bee-Eaters & Rollers. Christopher Helm, A & C Black. London.
Fry, C. H.; Fry. K.; Harris. A. (1992). Kingfishers, Bee- eaters and Rollers: A Handbook. Russel Friedman Books, Halfway House, S. Africa.
Gholamhosseini, A.; Vardakis, M.; Aliabadian, M.; Nijman, V.; Vonk, R. (2013). Hybridization between sister taxa versus non-sister taxa: a case study in birds. Bird Study; 60: 195-211.
Gill, F.; Donsker, D. (Eds). (2020). IOC World Bird List (v 10.1). Doi 10.14344/IOC.ML.10.1. http://www.worldbirdnames.org/
Johanssona, U.S.; Irestedtb, M.; Qu, Y.; Ericsonb, GB. (2018). Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes. Molecular Phylogenetics and Evolution; 126: 17-22.
Kaboli, M.; Aliabadian, M.; Tohidifar, M.; Hashemi, A.; Musavi, .B.; Roselaar CS. (2016). Atlas of Birds of Iran (In Persian and English). Kharazmi University Press, Karaj, Iran.
Khaleghizadeh, A.; Roselaar, K.; Scott, D.A.; Tohidifar, M.; Mlikovsky, J.; Blair, M.; Kvartalnov, p. (2017). Birds of Iran: Annotated checklist of the species and subspecies. Iranshenasi Publishing, Tehran, Iran. 500 pp.
Mansoori, J. (2013). A Field Guide to the Birds of Iran (In Persian with an abstract in English). Farzaneh Book Publisher, Tehran, Iran. 513 pp.
McCarthy, EM. (2006). Handbook of Avian Hybrids of the World. Oxford University Press.
Sedaghat Nejad, Z.; Tashakorian, V.; Mobasheri, MH.; Homayuni, MS.; Foroghbakhsh, A.; Mansuri, A.; Sepehrimanesh, M. (2012). Provincial studies of Fars. Iran Textbook printing and Publication Company.
Sibley, C.G.; Ahlquist, J.E. (1990). Phylogeny and Classification of Birds. Yale Univ. Press, New Haven.
Thiollay, JM. (1985). Strategies adaptive comparées des Rolliers sedentaires et migrateurs dans une savane Guineene. Revue of Ecology (Terre et vie); 40: 364-377.
Vaurie, C. (1959). The birds of the Palearctic Fauna, A systematic reference. Order Passeriformes. H. F. & G. Witherby Ltd., London, United Kingdom. 762 pp.
)