No Inv.: 85074-85078/P/Perp/FIS/03/5c
No Inv.: 3810/P/99/1c
No Inv.: 2791/P/Perp/96/1c
Bibliografi : hlm. 191-193
No Inv.: 10961/P/Perp/98/1c~3462/P/Perp/99/1c
No Inv.: 17144/Perp/68/1c~17153/Perp/68/1c~17146/Perp/68/1c
No Inv.: 137141/P/Perp/14/1c~143964/P/Perp/14/1c
Bibliografi : hlm. 333-335 No Inv.: 141406-141410/P/Perp/14/5c
Judul asli :"Business Professional communications"
Bibliografi di tiap babNo Inv.: 11261/P/Perp/98/1c~991-993/P/Perp/99/3c~113044/S/Perp/08/1c