Rujukan Enggang_Sulawesi

  1. 1 2 3 4 BirdLife International (2017). "Rhyticeros cassidix". Senarai Merah Spesies Terancam IUCN. 2017: e.T22682525A117182222. doi:10.2305/IUCN.UK.2017-3.RLTS.T22682525A117182222.en. Dicapai pada 19 November 2021.
  2. ↑ "Appendices | CITES". cites.org. Dicapai pada 2022-01-14.
  3. 1 2 Josep del Hoyo; Andrew Elliott; David Christie, penyunting (2010). Handbook of the Birds of the World. Barcelona: Lynx Edicions.
  4. ↑ Kinnaird, M. F. (1998). "Evidence for effective seed dispersal by the Sulawesi red-knobbed hornbill, Aceros cassidix". Biotropica. 30 (1): 50–55. doi:10.1111/j.1744-7429.1998.tb00368.x.

Rujukan

WikiPedia: Enggang_Sulawesi https://www.iucnredlist.org/species/22682525/11718... https://doi.org/10.2305%2FIUCN.UK.2017-3.RLTS.T226... https://cites.org/eng/app/appendices.php https://doi.org/10.1111%2Fj.1744-7429.1998.tb00368... https://animaldiversity.org/accounts/Aceros_cassid... https://avibase.bsc-eoc.org/species.jsp?avibaseid=... https://ebird.org/species/knohor1 https://www.gbif.org/species/8290357 https://www.inaturalist.org/taxa/514334 https://apiv3.iucnredlist.org/api/v3/taxonredirect...