No Inv.: 1827-1828/P/Perp/92/2c~6600-6604/P/Perp/92/5c
No Inv.: 1164-1168/P/Perp/94/5c~3027-3028/P/Perp/91/2c
No Inv.: 515-517/P/Perp/92/3c~9774-9778/P/Perp/92/5c~86508/S/Perp/03/1c~102772/S/Perp/05/1c
No Inv.: 2885-2886/P/Perp/91/2c~109542/S/Perp/07/1c
No Inv.: 2525-2529/P/Perp/92/5c
No Inv.: 6099-6103/P/Perp/92/5c
Termasuk bibliografi No Inv.: 100733-100742/P/Perp/05/10c~104660-104669/P/Perp/06/10c~109304/S/Perp/07/1c~109812-109813/PSM/Perp/07/2c~116541-116545/P/Perp/09/5c
Judul asli : "The Professional Secretary : Skill and Techniques for Recognition and Sources"
No Inv.: 733/S/Perp/91/1c~3083-3084/P/Perp/91/2c~5664-5668/P/Perp/92/5c~13180-13184/P/Perp/94/5c~11768/P/Perp/94/1c~11401-11410/P/Perp/98/10c~119579-119581/P/Perp/09/3c
No Inv.: 1014-1018/P/Perp/94/5c