Short, L.L.; Horne, J. F. M.; Kirwan, G. M. (2020). "Coppersmith Barbet (Psilopogon haemacephalus)". In del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D. A.; de Juana, E. (eds.). Handbook of the Birds of the World and BirdLife International Illustrated Checklist of the Birds of the World. Vol. 7: Jacamars to Woodpeckers. Barcelona, Spain and Cambridge, UK: Lynx Edicions and BirdLife International. எண்ணிம ஆவணச் சுட்டி:10.2173/bow.copbar1.01. S2CID241547458.
hbw.com
Short, L.L.; Horne, J. F. M.; Kirwan, G. M. (2020). "Coppersmith Barbet (Psilopogon haemacephalus)". In del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D. A.; de Juana, E. (eds.). Handbook of the Birds of the World and BirdLife International Illustrated Checklist of the Birds of the World. Vol. 7: Jacamars to Woodpeckers. Barcelona, Spain and Cambridge, UK: Lynx Edicions and BirdLife International. எண்ணிம ஆவணச் சுட்டி:10.2173/bow.copbar1.01. S2CID241547458.
Short, L.L.; Horne, J. F. M.; Kirwan, G. M. (2020). "Coppersmith Barbet (Psilopogon haemacephalus)". In del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D. A.; de Juana, E. (eds.). Handbook of the Birds of the World and BirdLife International Illustrated Checklist of the Birds of the World. Vol. 7: Jacamars to Woodpeckers. Barcelona, Spain and Cambridge, UK: Lynx Edicions and BirdLife International. எண்ணிம ஆவணச் சுட்டி:10.2173/bow.copbar1.01. S2CID241547458.