Horton, William
ASTD Press, 2001
Buku Teks SO
Nowlan, Alden
Irwin, 1974
Buku Teks SO
Hersey, John
Alfred A. Knopf, 1963
Buku Teks SO
Yin, Chang
Publication Internental Press, 2009
Buku Teks
edited by J. Timothy Harrington and Eric D. Newman
Springer, 2012
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