Diekelmann, Nancy L.
Addison-Wesley, 1997
Buku Teks
Diekelmann, Nancy L.
Addison-Wesley, 1985
Buku Teks
Jones, John
[American Society for Training & Development Press, American Society for Training & Development Press], 2002
eBooks
Department of the Army Field Manual
Dorset Press, 2000
Buku Teks
Berring, Robert C.
West Group, 2002
Buku Teks SO