Links:
[1] http://admin.indiaenvironmentportal.org.in/books/tribal-situation-india
[2] http://admin.indiaenvironmentportal.org.in/category/author/k-suresh-singh
[3] http://admin.indiaenvironmentportal.org.in/category/publisher/indian-institute-advanced-study
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tribals
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india