No Inv.: 1370-1371/BD/Perp/86/2c
No Inv.: 345-346/P/Perp/98/2c
Judul asli : "Positioning : the Battle for ..."
No Inv.: 116289-116291/P/Perp/09/3c
No Inv.: 14444/S/90/1c
No Inv.: 3564-3568/P/Perp/92/5c~3054/P/Perp/97/1c~84359/P/Perp/02/1c~87646-87650/P/Perp/04/5c~128915/SM/Perp/10/1c~129135/SM/Perp/11/1c~130097,130108/SM?Perp/11/2c
Judul asli : " Tips for manager "
No Inv.: 679/S/Perp/93/1c~5246-5247/S/Perp/86/2c~582-592/P/Perp/95/10c