Tham khảo Cu_rốc_tai_lam

  1. 1 2 BirdLife International (2018). “Psilopogon duvaucelii”. The IUCN Red List of Threatened Species. IUCN. 2018: e.T22726136A131279378. doi:10.2305/IUCN.UK.2018-2.RLTS.T22726136A131279378.en.
  2. 1 2 Lesson, R. P. (1831). “Barbu de Duvaucel; Bucco Duvaucelii”. Traité d'ornithologie, ou Tableau méthodique des ordres, sous-ordres, familles, tribus, genres, sous-genres et races d'oiseau. Tome 1. Strasbourg: F. G. Levrault. tr. 164. Đã bỏ qua tham số không rõ |chapterurl= (trợ giúp)
  3. 1 2 del Hoyo, J.; Collar, N. J.; Kirwan, G. M. (2014). “Black-eared Barbet Psilopogon duvaucelii”. Handbook of the Birds of the World and BirdLife International Illustrated Checklist of the Birds of the World. Volume 7: Jacamars to Woodpeckers. Barcelona, Spain and Cambridge, UK: Lynx Edicions and BirdLife International. Đã bỏ qua tham số không rõ |chapterurl= (trợ giúp); Đã bỏ qua tham số không rõ |editors= (gợi ý |editor=) (trợ giúp); |volume= has extra text (trợ giúp)
  4. ↑ Müller, S. (1835). “Aanteekeningen over de natuurlijke gesteldheid van een gedeelte der westkust en binnenlanden van Sumatra, met bijvoeging van eenige waarnemingen en beschrijvingen van verscheid dieren”. Tijdschrift voor natuurlijke geschiedenis en physiologie. 2: 315–355.
  5. ↑ Ripley, S. D. (1945). “The barbets” (PDF). The Auk. 62 (4): 542–563.
  6. ↑ Oberholser, H. C. (1912). “Descriptions of one hundred and four new species and subspecies of birds from the Barussan islands and Sumatra” (PDF). Smithsonian Miscellaneous Collections. 60 (7): 1–22.
  7. ↑ Meyer de Schauensee, R. (1929). “A New Barbet from the Batu Islands”. Proceedings of the Academy of Natural Sciences of Philadelphia. 81: 521. JSTOR 4064046.

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