Morrison, Eileen E.
Jones and Bartlett, 2016
Buku Teks SO
Alkin, Marvin C.
Sage, 1985
Buku Teks
edited by Dwaine Marvick
Free Press, 1961
Buku Teks SO
Tatiana Valentine Guy, Miroslav Karny, David H. Wolpert, editors
[Springer, ], 2012
eBooks
Harris, Dean M., 1951-
Jossey-Bass, 2011.
Buku Teks SO