Fuhr, Michael. Globalization and Popular Music in South Korea: Sounding Out K-Pop. Routledge, 2015. ISBN 9781317556909. Qaraldi: 21-mart 2017-yil. „Mini-albums and EPs are shorter than full-length albums and usually contain four or five songs [...] They are less expensive and time-consuming in production than albums, and they help to popularize new groups who otherwise lack the number of songs required for a full-length album.“
