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Baris 20: * [[Raymond Fraser\|Fraser, Raymond]] (2007). ''When The Earth Was Flat: Remembering Leonard Cohen, Alden Nowlan, the Flat Earth Society, the King James monarchy hoax, the Montreal Story Tellers and other curious matters.'' Black Moss Press, ISBN 978-0-88753-439-3 * Garwood, Christine (2007) ''Flat Earth: The History of an Infamous Idea'', Pan Books, ISBN 1-4050-4702-X * {{cite book \|first= Rudolf\|last=Simek \|title=Heaven and Earth in the Middle Ages: The Physical World Before Columbus \|publisher=The Boydell Press \|date=1996 \|others=Angela Hall (trans.) \|url=http://books.google.com/books?id=gXBSKZAlAdMC&pg=PR7 \|accessdate=February 9, 2013 }} ==Pranala luar==

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