Gopalakrishnan, R. (1996). Socio-political framework in North-East India. Vikas Pub. House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGopalakrishnan, R. Socio-political Framework in North-East India. New Delhi: Vikas Pub. House, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGopalakrishnan, R. Socio-political Framework in North-East India. Vikas Pub. House, 1996.
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