general editor: Thomas McCracken ; contributing editor: Richard Walker ; foreword: John F. Morris
Lustre Press, 1999
Buku Referensi
McCracken, Thomas
Barnes & Noble Books, 1999
Multimedia
Drucker, Peter Ferdinand, 1909-2005
Harper & Brothers, 1950
Buku Teks SO
Bateman, Thomas S.
McGraw-Hill, 2002
Buku Teks
edited by D.E. Hutchison
University of Western Australia Press, 1969
Buku Teks SO