National Training Laboratories Institute for Applied Behavioral Science
Institute for Applied Behavioral Science, 1968
Buku Teks
Leavitt, Fred
C. Brown Publishers , 1991
Buku Teks SO
Sommer, Robert
New York, 2002
Buku Teks
Marks, David F.
Sage, 2018
Buku Teks SO
edited by Susan E. Israel, Gerald G. Duffy
Routledge, 2009
Buku Referensi