Luthans, Fred, author
McGraw-Hill , 1976
Buku Teks
Hellriegel, Don
Addison-Wesley , 1974
Buku Teks
Kast, Fremont Ellsworth, author
McGraw-Hill, 1979
Buku Teks
Kast, Fremont Ellsworth, author
Science Research Association, 1973
Buku Teks
Newstrom, John W., author
McGraw-Hill, 1975
Buku Teks