"Dr. S. K. Chatterji basing his conclusions on the materials accumulated in LSI, Part I, and other monographs on the Bengali dialects, divides Eastern Mag. Pkt. and Ap. into four dialect groups. (1) Raddha dialects which comprehend Western Bengali which gives standard Bengali colloquial and Oriya in the South West. (2) Varendra dialects of North Central Bengal. (3) Kumarupa dialects which comprehend Assamese and the dialects of North Bengal. (4) Vanga dialects which comprehend the dialects of East Bengal (ODBL VolI p140)." Kakati 1941, стр. 6 Kakati, Banikanta (1941), Assamese: Its Formation and Development, Gauhati, Assam: Government of Assam
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, ур. (2016). „Assamese”. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
Bhattacharjya, Dwijen (2001). The genesis and development of Nagamese: Its social history and linguistic structure (PhD). City University of New York. ProQuest304688285.
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, ур. (2016). „Assamese”. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
worldcat.org
"… (it shows) that in Ancient Assam there were three languages viz. (1) Sanskrit as the official language and the language of the learned few, (2) Non-Aryan tribal languages of the Austric and Tibeto-Burman families, and (3) a local variety of Prakrit (ie a MIA) wherefrom, in course of time, the modern Assamese language as a MIL, emerged." Sharma, Mukunda Madhava (1978). Inscriptions of Ancient Assam. Guwahati, Assam: Gauhati University. стр. xxiv—xxviii. OCLC559914946.
