No Inv.: 107011/S/Perp/06/1c
Judul asli : "Hearing the Voice of the Market : Competition Advantage through Creative Use of Market Information"
No Inv.: 1749/P/Perp/91/1c
Judul asli: "The differentiated workforce transforming talent into strategic impact"
No Inv.: 140379/PH/Perp/14/1c
No Inv.: 105131/S/Perp/06/1c
No Inv.: 117118/P/Perp/09/1c
Bibliografi : hlm. 233-234