Sharma, Robin, author
Free Press, 2010
Buku Teks
Woody, Robert Henley, author
Jossey-Bass, 1989
Buku Teks
Journal of Population, 10 (2) 2004 : 35-78, 2004
Artikel Jurnal
Baber, Anne, author
American Management Association, 2007
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Brackman, Rabbi Levi, author
American Management Association;, 2008
eBooks