William M. Thomson:Land and the Book.London:Harper & Brothers,1859. [dostęp 2026-04-30]. Cytat: He is braying wheat with a pestle in a mortar, to make kibby, the national dish of the Arabs, and a very good one it is. Every family has one or more of these large stone mortars, and you may hear the sound of the "braying" at all hours as you walk the streets of the city..(ang.).
María Elena Cepeda:Musical imagiNation: U.S.-Colombian identity and the Latin music boom.New York University Press,2016. ISBN978-0-8147-7290-4. OCLC967261642.(ang.).