No Inv.: 777/P/Perp/97/1c
No Inv.: 1349-1358/P/Perp/97/10c
No Inv.: 725/P/Perp/98/1c
No Inv.: 11349/P/Perp/98/1c~3961/P/Perp/99/1c
No Inv.: 11006/P/Perp/97/1c~101910-101911/P/Perp/05/2c
No Inv.: 133-134/P/Perp/99/2c
Judul asli : "Business Research Methods"
No Inv.: 71230/P/00/1c
No Inv.: 013/AF/Perp/93/1c~2461-2462/Perp/85/2c~101853-101856/P/Perp/05/4c~122011,122012/P/Perp/10/2c