Ross, Stephen A., author
Richard D. Irwin, 1990
Buku Teks
Ross, Stephen A., author
Richard D. Irwin, 1993
Buku Teks
Stevenson, Richard A., author
McGraw-Hill International, 1980
Buku Teks
Garnett, David, author
Longman , 1991
Buku Teks
Garman, E. Thomas, author
Houghton Miffiln, 1985
Buku Teks