No Inv.: 511-518/S/Perp/98/8c
No Inv.: 503-510/S/Perp/98/8c
Judul asli : "Ethics in Business : a Guide for Manager"
No Inv.: 2575/P/Perp/98/1c
No Inv.: 825/S/Perp/98/1c
No Inv.: 4874-4897/P/Perp/99/5c
No Inv.: 5082-5086/P/Perp/99/5c
Judul asli : "The Relaxation and Stress ..."
No Inv.: 4097-4101/P/Perp/98/5c
No Inv.: 771-772/S/Perp/98/2c