No Inv.: 85337/P/Perp/03/1c~114251/P/Perp/08/1c
No Inv.: 78961/01/1c
No Inv.: 510-511/PS2PT/Perp/95/2c
No Inv.: 141607-141609,141610-141612/P/Perp/14/jil.2~146795-146796,141611/P/Perp/15/3c jil.2
Judul asli :"Business Professional communications"
No Inv.: 86395/PSM/Perp/03/1c
No Inv.: 2432-2434/BLN/Perp/91/3c
Judul asli : "Steps to Power and Mastery Over People"
No Inv.: 10434-10439/P/Perp/92/4c
No Inv.: 5689-5691/P/Perp/92/3c~5769-5774/P/Perp/92/5c