Day, Paul W
John Mulgan / Paul W Day
Twayne Publishers , 1968
 Buku Teks SO
Comparative marketing systems : a cultural approach / edited, Montrose S. Sommers, Jerome B. Kernan
Appleton-Century-Crofts, 1968
 Buku Teks SO
Understanding foreign policy : the foreign policy systems approach / edited by Michael Clarke and Brian White
Edward Edgar, 1994
 Buku Teks SO
Shiver, John M.
Managing integrated health systems
Jones & Bartlett Learning, 2016
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Traccey, William R.
Managing training and development systems
Amacom , 1974
 Buku Teks SO