No Inv.: 130055/SM/Perp/11/1c
No Inv.: 130420/SM/Perp/12/1c
Bibliografi : hlm.303-304 No Inv.: 136668/SM/Perp/13/1c
No Inv.: 138154/P/Perp/14/1c
Bibliografi : hlm. 160 No Inv.: 142398-142400/P/Perp/14/3c
No Inv.: 142483-142487/P/Perp/14/5c
Bibliografi : hlm. 314-331 No Inv.: 141084/PSM/Perp/14/1c
No Inv.: 80532-80538,80540-80545/P/02/14c~85457-85461~85452-85456/Perp/P/FIS/03/10~100692-100699/P/Perp/05/8c
Judul asli :"Business Professional communications"
No Inv.: 114069/P/Perp/08/1c