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American Management Association, 2004
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Mitroff, Ian I., author
American Management Association, 2001
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Stern, Stefan, author
Bhuana Ilmu Populer, 2021
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Muhammad Syafi`i Antonio, author
Tazkia Publishing, 2010
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Sindell, Milo, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
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