• History of Coffee - National Coffee Association USA
• The Legend of Kaldi - Coffee Detective
• Lenda de Kaldi – Wikipédia
• Coffee History - Perfect Daily Grind
• História do café no Iêmen – Britannica
• Turkish Coffee History - Turkish Coffee World
• The History of Coffeehouses - Encyclopaedia Britannica
• Coffee Smuggling History - Coffee Review
• Baba Budan and coffee introduction in India - India Today
• Coffee Culture in Europe - Smithsonian Magazine
• The History of Coffeehouses in Europe - History Extra
• Coffee History in Brazil - Perfect Daily Grind
• Gabriel de Clieu - Wikipedia
• Boston Tea Party - History.com
• Coffee History in the USA - National Coffee Association USA