Zulauf, Carol Ann
[American Society for Training and Development Press, American Society for Training and Development Press], 2000
eBooks
Berlyne, D.E.
John Wiley & Sons, 1966
Buku Teks SO
Valin, Robert D. van
Cambridge University Press, 2004
eBooks
Harrington, Jon
Prentice-Hall, 1991
Buku Teks
Budhi Paramita
Lembaga Penerbit Fakultas Ekonomi Universitas Indonesia , 1977
Buku Teks