Dev Raj
CBS Publishers and Distributors, 1985
Buku Teks
Mosley, Leonard, author
Jaico Publishing House, 1966
Buku Teks
Abu Ahmadi, author
Bumi Aksara , 1995
Buku Teks
Bergamini, David, author
Time Incorporated, 1963
Buku Referensi
Hemming, 1998
Multimedia