"Briefly, I propose, following a suggestion by Burling (2007), that the Proto-Boro-Garo first as a lingua franca used for communication across the various linguistic communicates of the region and its striking simplicity and transparency reflect a period when it was widely spoken by communities for whom it was not a native language." (DeLancey 2012:3) DeLancey, Scott (2012). Hyslop, Gwendolyn; Morey, Stephen; w. Post, Mark (eds.). "On the Origin of Bodo-Garo". Northeast Indian Linguistics. 4: 3–20. doi:10.1017/UPO9789382264521.003. ISBN9789382264521.