カルディ
(2001). The World of Caffeine: The Science and Culture of the World's Most Popular Drug. Psychology Press. ISBN 978-0-415-92722-2. https://books.google.co.jp/books?id=YdpL2YCGLVYC&redir_esc=y&hl=ja , page 3
↑ 一例としてKaldi - Wholesale Gourmet Coffee Roasters, Kaldi's Coffee Roasting Company, Kaldi's Coffee House, or a Google search for "Kaldi". All accessed 12 September 2006.