Kenneth M. Ames, "Slaves, Chiefs and Labour on the Northern Northwest Coast, " World Archaeology, Vol. 33, No. 1, The Archaeology of Slavery (Jun., 2001), pp. 1-17 in JSTOR [Архівовано 27 лютого 2020 у Wayback Machine.]
Kenneth M. Ames, "Slaves, Chiefs and Labour on the Northern Northwest Coast, " World Archaeology, Vol. 33, No. 1, The Archaeology of Slavery (Jun., 2001), pp. 1-17 in JSTOR [Архівовано 27 лютого 2020 у Wayback Machine.]