No Inv.: 3600/P/99/1c~74872/P/00/1c
No Inv.: 806616-80629/S/02/14c~85621-85625/P/Perp/FIS/03/5c~100684-100691/P/Perp/05/8c
Judul asli :"Business Professional communications"
No Inv.: 108861-108865/P/Perp/06/5c
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.: 5770-5774/Perp/92/5c
No Inv.: 5689-5691/P/Perp/92/3c~5769-5774/P/Perp/92/5c