Kennedy, John F.
Endang, 1956
Buku Teks
Praeger publishers, 1980
Buku Teks
Chandra, Prakash, author
Vikas Publishing House, 1982
Buku Teks
Chandra, Prakash, author
Vikas Publishing House, 1982
Buku Teks
Fukuyama, Francis, author
IRCIS, 2003
Buku Teks