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Johnson, Russell J.; Johnson, Jane E.: Distinction between West Bengal Sign Language, and Indian Sign Language Based on Statistical Assessment, Sign Language Studies 2016, Vol. 16, Issue 4, S. 473–499, URL https://www.jstor.org/stable/26191231, doi:10.1353/sls.2016.0016, jstor 26191231, s2cid 148131477
Miles, M. 2001, extended and updated 2006-04. "Signs of Development in Deaf South & South-West Asia: histories, cultural identities, resistance to cultural imperialism". This is a further revised, extended and updated version of a chapter first published in: Alison Callaway (ed) Deafness and Development, University of Bristol, Centre for Deaf Studies, 2001. Internet publication URL: https://www.independentliving.org/docs7/miles200604.html
Johnson, Russell J.; Johnson, Jane E.: Distinction between West Bengal Sign Language, and Indian Sign Language Based on Statistical Assessment, Sign Language Studies 2016, Vol. 16, Issue 4, S. 473–499, URL https://www.jstor.org/stable/26191231, doi:10.1353/sls.2016.0016, jstor 26191231, s2cid 148131477