An analysis of Pre-Columbian balsa raft design to determine the suitability of such rafts for ancient maritime trade between Ecuador and Mexico | Semantic Scholar
Tangaroa Expedition - Wikipedia
Norwegian Thor HeyerdahlS Balsa Raft History - Bed Bath & Beyond - 24422432
La Balsa;: The longest raft voyage in history,: 9780883490013: Books - Amazon.ca