Polybius, "Fishing for Swordfish" (页面存档备份,存于互联网档案馆), Histories Book 34.3 (Evelyn S. Shuckburgh, translator). London, New York: Macmillan, 1889. Reprint Bloomington, 1962.
Information about Erik Eriksen based on The Discovery of King Karl Land, Spitsbergen, by Adolf Hoel, The Geographical Review Vol. XXV, No. 3, July, 1935, Pp. 476–478, American Geographical Society, Broadway AT 156th Street, New York" and Store norske leksikon, Aschehoug & Gyldendal (Great Norwegian Encyclopedia, last edition)
F.R. Allchin in South Asian Archaeology 1975: Papers from the Third International Conference of the Association of South Asian Archaeologists in Western Europe, Held in Paris (December 1979) edited by J.E.van Lohuizen-de Leeuw. Brill Academic Publishers, Incorporated. Pages 106-118. ISBN 9004059962.
Edgerton; et al. (2002). Indian and Oriental Arms and Armour. Courier Dover Publications. ISBN 0486422291.
Ray, Himanshu Prabha (2003). The Archaeology of Seafaring in Ancient South Asia. Cambridge University Press. ISBN 0521011094.