Sharma, Ram Sharan . Sudras in ancient India: a social history of the lower order down to circa A.D. 600 / by Ram Sharan Sharma. - 3rd rev ed 1990 / - Delhi : Motilal Banarsidass Publishers , 1990 - xix, 384p ; ISBN: 81-208-0706-5 Subjects--Topical Terms: History- Ancient India Dewey Class. No.: V44(Y5926)`C / N0