Hax, Arnoldo C., author
Prentice-Hall, 1984
Buku Teks
Hax, Arnoldo C.
Englewood Cliffs, 1984
Buku Teks
Gamble, John, author
McGraw-Hill , 2015
Buku Teks
David, Fred R., author
Pearson, 2015
Buku Teks
Verardo, Denzil, author
[American Society for Training and Development Press, American Society for Training and Development Press], 1999
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