Gorbachev, Mikhail
P.T.Gelora Aksara Pratama, 1987
Buku Teks
Gorbachev, Mikhail, author
Jakarta Gelora Aksara Pratama 1992,
Buku Teks
Wright, Peter
Erlangga, 1988
Buku Teks
Eck, Diana L., author
Pustaka Sinar Harapan , 2005
Buku Teks
Martin Khor Kok Peng
Gramedia Pustaka Utama, 1993
Buku Teks