Rodgers, William H., author
St. Paul Minn, 1977
Buku Teks
Heimstra, Norman W., author
Brooks/Cole, 1974
Buku Teks
by Paul A. Bell ... [and others]
Wadsworth/Thomson Learning, 2001
Buku Teks
Baird, Colin, author
WH Freeman, 2001
Buku Teks
Inhaber, Herbert
John Wiley & Sons, 1976
Buku Teks