Kunkel, John H.
Oxford University Press, 1970
Buku Teks
Puji Lestari, author
2015
UI - Skripsi (Membership)
Hopkins, Kenneth D., author
Allyn And Bacon, 1987
Buku Teks
edited by Warren G. Bennis, Kenneth D. Benne and Robert Chin
Holt, Rinehart and Winston 1961, 1961
Buku Teks
Martin, Brian, author
Freedom Press, 1993
Buku Teks