Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ramming-earth
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/habitat-and-urbanisation
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/building-materials
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mud
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/architecture
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/traditional-knowledge