Jelaskan Rujukan dari Galah dalam bahasa melayu

Brown, D.M. & Toft, C.A. (1999): Molecular systematics and biogeography of the cockatoos (Psittaciformes: Cacatuidae). Auk 116(1): 141–157.

Flegg, Jim (2002): Photographic Field Guide: Birds of Australia. Reed New Holland, Sydney & London. ISBN 1-876334-78-9

Forshaw, Joseph M. & Cooper, William T. (2002): Australian Parrots (3rd ed.). Alexander Editions. ISBN 0-9581212-0-6

Frith, Harold James & Watts, Betty Temple (1984): Birds in the Australian High Country. Angus & Robertson, London. ISBN 0-207-14464-8