Linguistic survey of India: V009 Part-3 Indo-Arvan Family- Central Group
Grierson, G. A.
Linguistic survey of India: V009 Part-3 Indo-Arvan Family- Central Group - Delhi Motilal Banarasidas 1968
Linguistic survey of India: V009 Part-3 Indo-Arvan Family- Central Group - Delhi Motilal Banarasidas 1968