Maxey, Cyndi, author
American Society for Training & Development, 2010
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Pritchard, Christopher W., author
American Management Association;, 2007
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Chase, Landy, author
McGraw-Hil, 2010
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Knapp, Jake, author
Gramedia Pustaka Utama, 2022
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Christopher, Dawson, author
Catholic University of America Press, 20001
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