editedby Jay M. Shafritz, J. Steven Ott
Brooks/Cole, 1991
Buku Teks
Osborn, Richard N., author
John Wiley & Sons, 1980
Buku Teks
Kast, Fremont Ellsworth, author
McGraw-Hill Kogakusha, 1974
Buku Teks
Kast, Fremont Ellsworth, author
McGraw-Hill, 1981
Buku Teks
Kast, Fremont Ellsworth, author
Science Research Association, 1973
Buku Teks