David R. Starbuck (2002), Massacre at Fort William Henry (sayfa 11: Who Invented Scalping? In the colonial period this custom was exacerbated due to European intervention: James Axtell and William Sturtevant have pointed out that the French urged the Indian scalping of whites, and the English encouraged the white scalping of Indians)
Aoki, Haruo. (1994), Nez Perce dictionary. University of California publications in linguistics (Vol. 112). Berkeley: University of California Press. ISBN 0-520-09763-7
James Axtell and William C. Sturtevant (1980), The Unkindest Cut, or Who Invented Scalping. The William and Mary Quarterly, Third Series, Vol. 37, No. 3 (Jul., 1980), pp. 451-472