Tarlekar, G. H.
Studies in the natyasastra : with special reference to the sanskrit drama in performance
Motial Banarsidass Publishers, 1991
 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
Handbook of programming languages, volume I : object-oriented programming languages
Macmillan Technical Publishing, 1998
 Buku Referensi
Parliaments of the world: a comparative reference compendium: volume I
Inter-Parliamentary Union
Facts on File Publications, 1986
 Buku Referensi
Puhvel, Jaan
Laryngeals and the Indo-European verb
University of California Press, 1960
 Buku Klasik