Pohjanpalo, Jorma (1970). The sea and man. Translated by Diana Tullberg. New York: Stein and Day. p.25. ISBN978-0812813036. Consultado el 5 de noviembre de 2015. «The oldest raft structures known are at least 8,000 years old.»
Williams, Charles Frederic (1895), «Vessel», en Merrill, John Houston; Williams, Charles Frederic; Michie, Thomas Johnson et al., eds., Utmost care to Watercourses, The American and English Encyclopædia of Law 28, Edward Thompson Company, p.440Se sugiere usar |número-editores= (ayuda).
«Ancient voyaging in Near Oceania». Te Ara Encyclopedia of New Zealand – Te Ara Encyclopedia of New Zealand. 20 de febrero de 2019. Consultado el 18 de agosto de 2021.