by Bank Dagang Negara
Bank Dagang Negara, 1990
Buku Teks
Acton, Edward
Longman, 1986
Buku Teks
edited by Stephanie Abraham Hirsh and Philip Bacon
Harcourt Brace Jovanovich, 1988
Buku Teks
Wallbank, T. Walter, author
Scott, Foresman, 1965
Buku Teks
Reischauer, Edwin O., author
Alfred A. Knopf, 1964
Buku Teks