No Inv.: 112574-1112578/P/Perp/08/5c~117334-117336/P/Perp/09/3c
No Inv.: 1058/S/Perp/88/1c~320/S/Perp/90/1c
No Inv.: 6265/P/99/1c
No Inv.: 3721/Perp/86/1c~3552/Perp/86/1c
Judul asli : "Effective Leadership, a Self-development Manual"
No Inv.: 1214-1216/Pb/Perp/92/3c~104/Pb/Perp/92/1c~10530/P/Perp/92/1c
No Inv.: 3135-3136/P/Perp/91/2c~3475-3484/P/Perp/97/10c
No Inv.: 3366-3370/P/Perp/95/5c~7561-7570/P/Perp/97/10c~103345/S/Perp/05/1c