No Inv.: 129666/SM/Perp/11/1c~140039-140043/P/Perp/14/5c
No Inv.: 5980-5984/P/Perp/99/5c
No Inv.: 127799-127803/P/Perp/10/5c~128860/PSM/Perp/10/1c~128836/PSM/Perp/10/1c
No Inv.: 89579-89580/PSM/Perp/04/2c
Judul asli :"Control Your Overheads"
No Inv.: 14483-14485/P/Perp/94/3c
No Inv.: 85074-85078/P/Perp/FIS/03/5c
Judul asli :"Business Professional communications"
Bibliografi : hlm. 255-274No Inv.: 138209-138210/P/Perp/14/2c~143965/P/Perp/14/1c
No Inv.: 78320/01/1c~112497-112500/P/Perp/08/4c~117581-117582/P/Perp/09/2c