Hartong, Jan Laurens. Musical terms worldwide: a companion for the musical explorer. Semar Publishers, 2006 — 15-bet. ISBN 978-88-7778-090-4. Qaraldi: 2011-yil 5-dekabr. „Since the 1990s, popular genres like rap, rock and techno house have been incorporated into Korean popular music, setting the trend for the present generation of K-pop, which often emulates American models.“