Bibliografi : hlm. 265-269No Inv.: 136556/SM/Perp/13/1c
No Inv.: 109250/S/Perp/07/1c~113024/S/Perp/08/1c
No Inv.: 131572/S/Perp/12/1c
No Inv.: 11976-11981/P/Perp/94/1c~3614-3618/P/Perp/96/5c
No Inv.: 131721/PH/Perp/12/1c~140393/SM/Perp/14/1c
Judul asli: "Corporate Protocol : a Brief Case for Business Etiquette"
No Inv.: 121092/S/Perp/09/1c