Luthans, Fred, author
McGraw-Hill , 1976
Buku Teks
Hill, Charles W. L., author
Houghton Miffiln, 1995
Buku Teks
Hill, Charles W. L., author
Houghton Miffiln, 1992
Buku Teks
Hill, Charles W. L., author
Houghton Miffiln, 2001
Buku Teks
edited by Sandra Stone
Mosby, 1984
Buku Teks