References
The IUCN Red List of Threatened Species
Babyrousa celebensis, Sulawesi babirusa.
by Leus K., Macdonald A., Burton J. and Rejeki I. The IUCN Red List of Threatened Species 2016: e.T136446A44142964. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T136446A44142964.en
Babyrousa babyrussa, Hairy Babirusa.
by Macdonald A.A., Burton J. and Leus K. The IUCN Red List of Threatened Species 2008: e.T2461A9441445. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T2461A9441445.en
Babyrousa togeanensis, Togian Islands Babirusa.
by Macdonald A., Leus K., Masaaki I. and Burton J. The IUCN Red List of Threatened Species 2016: e.T136472A44143172. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T136472A44143172.en
Ecology, Conservation and Management of Wild Pigs and Peccaries (Mellettti M. and Meijaard E. eds.) 2017. Cambridge University Press, Cambridge.
Chapter 6. Sulawesi babirusa Babyrousa celebensis (Deninger, 1909) by Macdonald A.A.
Chapter 7. Moluccan babirusa Babyrousa babyrussa (Linnaeus, 1758) by Sheherazade, Hesdianti E. and Indrawan M.
Chapter 8. Togian babirusa Babyrousa togeanensis (Sody, 1949) by Ito M. and Melleti M.
Suiform Soundings. Newsletter of the IUCN/SSC Wild Pig, Peccary and Hippo Specialist Groups.
https://www.iucn-wpsg.org/newsletter
Handbook of the Mammals of the World. Volume 2: Hoofed Mammals (Wilson, D. E. and Mittermeier, R. A., eds.) 2011. Lynx Edicions, Barcelona.
Family Suidae (Pigs) by Meijaard E., d’Huart J.P. and Oliver W.L.R.