No Inv.: 1058/S/Perp/88/1c~320/S/Perp/90/1c
Judul asli : "Effective Leadership, a Self-development Manual"
No Inv.: 82589-82593/P/Perp/02/5c348-350/P/Perp/92/3c~3077/P/Perp/99/1c~118383-118387/P/Perp/09/5c
No Inv.: 044/S/Perp/92/1c~2772/P/Perp/92/1c
No Inv.: 119316-119318/P/Perp/09/3c~142941-142945/P/Perp/14/5c
No Inv.: 173-174/S/Perp/89/2c~2572/S/Perp/87/1c
No Inv.: 671/P/Perp/94/1c
No Inv.: 1214-1216/Pb/Perp/92/3c~104/Pb/Perp/92/1c~10530/P/Perp/92/1c