Fairbanks, Ralph W.
Prentice-Hall, 1956
Buku Teks
Levin, Howard S.
John Wiley & Sons, 1956
Buku Teks
Hirschheim, R.A
Addison-Wesley, 1986
Buku Teks SO
Hill, John W.
Prentice-Hall, 1975
Buku Teks SO
edited by C. Everett Koop, Clarence E. Pearson, M. Roy Schwarz ; foreword by Jimmy Carter
Jossey-Bass, 2000
Buku Teks