Yee, L. K., Tea’s Wonderful History, The Chinese Historical and Cultural Project, Архивирано из оригинала 03. 08. 2002. г., Приступљено 17. 6. 2013, „year 1996–2012”
„tea”. Online Etymology Dictionary. „The Portuguese word (attested from 1550s) came via Macao; and Rus. chai, Pers. cha, Gk. tsai, Arabic shay, and Turk. çay all came overland from the Mandarin form.”
„Chai”. American Heritage Dictionary. Архивирано из оригинала 18. 02. 2014. г. Приступљено 20. 07. 2017. „Chai: A beverage made from spiced black tea, honey, and milk. ETYMOLOGY: Ultimately from Chinese (Mandarin) chá.”
Yee, L. K., Tea’s Wonderful History, The Chinese Historical and Cultural Project, Архивирано из оригинала 03. 08. 2002. г., Приступљено 17. 6. 2013, „year 1996–2012”
Tea. Encarta. Архивирано из оригинала 08. 03. 2008. г. Приступљено 23. 7. 2008.
„Chai”. American Heritage Dictionary. Архивирано из оригинала 18. 02. 2014. г. Приступљено 20. 07. 2017. „Chai: A beverage made from spiced black tea, honey, and milk. ETYMOLOGY: Ultimately from Chinese (Mandarin) chá.”