edited by Claire Abson, Edward Oyston
Ashgate, 2003
Buku Teks
Sanders, Roy E., author
Elsevier Butterworth Heinemann, 2005
Buku Teks
Sebastian, Juliann G., author
Mosby, 1999
Buku Teks
World Health Organization
WHO, 2005
Buku Teks
Phillips, Jack J., author
American Society for Training and Development Press;, 2005
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