Stryker, Perrin
Harper & Row, [Date of publication not identified]
Buku Teks SO
by John P. Campbell ... [and others]
McGraw-Hill, 1970
Buku Teks
edited by Harold J. Leavitt and Louis R. Pondy
University of Chicago Press, 1964
Buku Teks SO
Savage, Christopher I.
Hutchinson, 1975
Buku Teks SO
Filley, Alan C.
Scott, Foresman, 1969
Buku Teks SO