Bibliografi : hlm./ 343-344 No Inv.: 133958/SM/Perp/13/1c~136180/SM/Perp/13/1c~135867/SM/Perp/13/1c
No Inv.: 131314,131154/SM/Perp/12/2c~135035/SM/Perp/13/1c~135299/SM/Perp/13/1c
No Inv.: 347/S/Perp/92/1c
No Inv.: 3557/Pb/Perp/91/1c
Judul asli : "How to be an Effective Secretary"
No Inv.: 6850-6854/P/Perp/92/5c
No Inv.: 4947-4951/P/Perp/93/5c~826/P/Perp/93/1c~2488/P/Perp/93/1c