Herry Tjahjono
Gramedia, 2007
Buku Teks
Jones, Jim
Taplinger, 1966
Buku Teks
Wilson, Jerry S., author
American Management Association;, 2008
eBooks
Maltz, Maxwell, 1899-1975, author
Dahara Prize, 2003
Buku Teks
Charitas, Rully, author
Gramedia Pustaka Utama , 2006
Buku Teks