1. Fowler M.E. and Bravo W.P. (1998) Reproduction. In: Fowler M.E . (ed.), Medicine and Surgery of South American Camelids: Llama, Alpaca, Vicuna, Guanaco , 2nd edn. Iowa State University Press, Iowa, USA, pp. 386–388.
2. Sumar J. (1983) Studies on Reproductive Pathology in Alpacas. MS Thesis. Department of Obstetrics and Gynaecology, College of Veterinary Medicine, Swedish University of Agricultural Science, Uppsala, Sweden.
3. Effect of semen collection frequency on the semen characteristics of dromedary camels;Al-Bulushi S.;Animal Reproduction Science,2018
4. Artificial insemination with fresh, liquid stored and frozen thawed semen in dromedary camels;Al-Bulushi S.;PLoS One,2019
5. Collection of semen and artificial insemination of alpacas;Bravo P.W.;Theriogenology,1997