Nissen, Mark, author
Igi Global, 2014
Buku Teks
editors, Marshall Goldsmith, Howard Morgan, Alexander J. Ogg
John Wiley & Sons, 2004
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Artikel Jurnal
Dewangga Wisnu, author
Fakultas Ilmu Komputer Universitas Indonesia, 2013
UI - Skripsi (Membership)
McElroy, Mark W., author
Butterworth-Heinemann, 2003
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