Hatchwell, B.J. (2005). "Family Prunellidae (Accentors)". In del Hoyo, J.; Elliott, A.; Christie, D.A. (eds.). Handbook of the Birds of the World. Vol. 10: Cuckoo-shrikes to Thrushes. Barcelona, Spain: Lynx Edicions. pp. 496–513. ISBN978-84-87334-72-6.