Cox, Eli P.
N.Y. Harper & Row c. , 1979
Buku Teks
Hoffamn, K. Douglas
Horcourt Colledge Publisher, 2002
Buku Teks
Kurtz, David L., author
The Dryden Press , 1981
Buku Teks
Alex Soemadji Nitisemito, author
Ghalia Indonesia, 1984
Buku Teks
Alex Soemadji Nitisemito, author
Ghalia Indonesia, 1984
Buku Teks