Armitage, Simon; Sabah A. Jasim; Anthony E. Marks; Adrian G. Parker; Vitaly I. Usik; Hans-Peter Uerpmann (28 January 2011). "The Southern Route "Out of Africa": Evidence for an Early Expansion of Modern Humans into Arabia". Science. 331 (6016): 453–456. Bibcode:2011Sci...331..453A. doi:10.1126/science.1199113. PMID21273486. S2CID20296624.
Armitage, Simon; Sabah A. Jasim; Anthony E. Marks; Adrian G. Parker; Vitaly I. Usik; Hans-Peter Uerpmann (28 January 2011). "The Southern Route "Out of Africa": Evidence for an Early Expansion of Modern Humans into Arabia". Science. 331 (6016): 453–456. Bibcode:2011Sci...331..453A. doi:10.1126/science.1199113. PMID21273486. S2CID20296624.
Armitage, Simon; Sabah A. Jasim; Anthony E. Marks; Adrian G. Parker; Vitaly I. Usik; Hans-Peter Uerpmann (28 January 2011). "The Southern Route "Out of Africa": Evidence for an Early Expansion of Modern Humans into Arabia". Science. 331 (6016): 453–456. Bibcode:2011Sci...331..453A. doi:10.1126/science.1199113. PMID21273486. S2CID20296624.
Armitage, Simon; Sabah A. Jasim; Anthony E. Marks; Adrian G. Parker; Vitaly I. Usik; Hans-Peter Uerpmann (28 January 2011). "The Southern Route "Out of Africa": Evidence for an Early Expansion of Modern Humans into Arabia". Science. 331 (6016): 453–456. Bibcode:2011Sci...331..453A. doi:10.1126/science.1199113. PMID21273486. S2CID20296624.