Hamer, W. Clay
John Wiley & Sons, 1980
Buku Teks
Universitas Indonesia, 1993
UI - Skripsi (Membership)
R. Brun, editor
[Springer, ], 2012
eBooks
edited by Cyril M. Harris, Charles E. Crede
McGraw-Hill, 1961
Buku Referensi
Indian Committee for Cultural Freedom, 1999
Buku Teks