eep are derived from two different ancestral maternal sources: no evidence for contributions from urial and argali sheep". The Journal of Heredity. 89 (2): p. 113. doi:10.1093/jhered/89.2.113. PMID 9542158. {{cite journal}}: |page= has extra text (help)CS1 maint: multiple names: authors list (link)↑ Meadows, J.R.; I. Cemal, O. Karaca; et al. (March 2007). "Five ovine mitochondrial lineages identified from sheep breeds of the near East". Genetics. 175 (3): p. 1371. doi:10.1534/genetics.106.068353. PMC 1840082. PMID 17194773. සම්ප්‍රවේශය 2008-02-12. {{cite journal}}: |page= has extra text (help); Explicit use of et al. in: |author= (help)CS1 maint: multiple names: authors list (link)↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 Weaver↑ 7.0 7.1 7.2 7.3 7.4 Simmons & Ekarius↑ Krebs, Robert E. & Carolyn A. (2003). Groundbreaking Scientific Experiments, Inventions & Discoveries of the Ancient World. Westport, CT: Greenwood Press. ISBN 0-313-31342-3.↑ 9.0 9.1 9.2 Budiansky↑ Donald E Bixby