Haimann, Theo, author
South-Western Pub., 1982
Buku Teks
Leonard , Edwin C., Jr., author
South-Western Cengage Learning, 2013
Buku Teks
Haire, Mason, author
McGraw-Hill, 1964
Buku Teks
Haire, Mason, author
McGraw-Hill, 1956
Buku Teks
Lundgren, Earl F., author
Confield, 1974
Buku Teks