The Indo-European languages
edited by Anna Giacalone Ramat and Paolo Ramat
Routledge, 1998
 Buku Teks SO
Buck, Carl Darling
A dictionary of selected synonyms in the principal Indo-European languages a contribution to the history of ideas
Chicago, Chicago University Press 1949
 Buku Referensi
Monier-Williams, Monier, Sir, 1819-1899
A Sanskrit - English dictionary : etymologically and philologically arranged with special reference to cognate Indo-European languages (Volume II)
Oxford University Press, 1979
 Buku Teks
Monier-Williams, Monier
A Sanskrit-English dictionary etymologically and philologically arranged with special reference to cognate Indo-European languages
The Clarendon Press, 1956
 Buku Referensi
Monier-Williams, Monier, Sir, 1819-1899
A Sanskrit - English dictionary : etymologically and philologically arranged with special reference to cognate Indo-European languages (Volume I)
Oxford University Press, 1899
 Buku Teks