1. Al-Azzawi, W.A., 1977. A comparative study of fleece characteristics in Iraqi sheep. M.Sc. Thesis. Cairo University, Faculty of Agriculture, Egypt, 112 pp.
2. Effect of age, locality and system of husbandry on fleece characteristics of Arabi sheep;Ashmawi;Egyptian J. Anim. Prod.,1980
3. A comparative study of fleece characteristics in Iraqi sheep. I. Greasy-fleece weight, shrinkage % and fiber type ratio;Ashmawi;Egyptian J. Anim. Prod.,1982
4. Campbell, D.A., 1996. A review of animal production in the Badia. Population and Livestock related Studies in the Eastern Badia of Jordan, Workshop Report. The Jordan Badia Research and Development Program, Jubaiha, Amman, Jordan, pp. 81–87.
5. Chapman, R.E., 1960. Measurements of wool samples. In: Fraser, A.S., Short, B.F. (Eds.), The Biology of the Fleece. Animal Research Laboratories, Technical Paper no. 3, Commonwealth Science and Industrial Research Organization, Sydney, pp. 71–86.