Gopalakrishnan, R. (1996). Socio-political framework in North-East India. Vikas Pub. House.
Lua i Stíl Chicago (17ú heag.)Gopalakrishnan, R. Socio-political Framework in North-East India. New Delhi: Vikas Pub. House, 1996.
Lua MLA (9ú heag.)Gopalakrishnan, R. Socio-political Framework in North-East India. Vikas Pub. House, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.