Novák, Ľubomír (2013). «Other Eastern Iranian Languages». Problem of Archaism and Innovation in the Eastern Iranian Languages (PhD). Prague: Charles University. p. 59.
Scott, D. A. (1984). «Zoroastrian Traces along the Upper Amu Darya (Oxus)». Journal of the Royal Asiatic Society of Great Britain and Ireland116 (2): 217-228. JSTOR25211708. S2CID163761565. doi:10.1017/S0035869X00163567.
Scott, D. A. (1984). «Zoroastrian Traces along the Upper Amu Darya (Oxus)». Journal of the Royal Asiatic Society of Great Britain and Ireland116 (2): 217-228. JSTOR25211708. S2CID163761565. doi:10.1017/S0035869X00163567.
Scott, D. A. (1984). «Zoroastrian Traces along the Upper Amu Darya (Oxus)». Journal of the Royal Asiatic Society of Great Britain and Ireland116 (2): 217-228. JSTOR25211708. S2CID163761565. doi:10.1017/S0035869X00163567.