Stuart Flack (McKinsey & Company), 2001
Majalah, Jurnal, Buletin
Cambridge University Press,
Majalah, Jurnal, Buletin
rakesh kumar,
Majalah, Jurnal, Buletin
University Of Pennsylvania Press,
Majalah, Jurnal, Buletin
Amsterdam : Free University Amsterdam the Netherlands
Majalah, Jurnal, Buletin