Only around 60 Javan rhinoceroses are believed to remain, all of them in Indonesia's Ujung Kulon National Park.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/javan-rhinos-face-human-incursions-their-last-remaining-habitat
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/mongabay
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/endangered-species
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rhinoceros
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indonesia
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/habitat
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asia