No Inv.: 1704/S/Perp/88/1c~1307/S/Perp/87/1c~548/S/Perp/88/1c~1826/S/Perp/96/1c
No Inv.: 101396/P/Perp/05/1c
No Inv.: 110164/PH/Perp/07/1c
Judul asli : "The Professional Secretary : Skill and Techniques for Recognition and Sources"
No Inv.: 5257-5259/S/Perp/86/3c~12813-12817/P/Perp/94/5c
No Inv.: 1241/S/Perp/88/1c~401/S/Perp/93/1c~107263/S/Perp/06/1c
No Inv.: 116238-116240/P/Perp/09/3c
Bibliografi : hlm. 269-270 No Inv.: 11532-11541/P/Perp/98/10c
Bibliografi : hlm. 183-184
Bibliografi : hlm. 263 - 264