Johnson, Julie K., author
Jones and Bartlett Publishers , 2016
Buku Teks
Morrison, Don A., author
Local Government Institute, 2002
Multimedia
Younger, Sandra Millers, author
[American Society for Training and Development Press, American Society for Training and Development Press], 2006
eBooks
Williken, Mary Elizabeth, author
Mosby , 1985
Buku Teks
Saunders Elsevier, 2007
Buku Teks