No Inv.: 10999/P/Perp/98/1c
No Inv.: 10614-10623/P/Perp/97/10c
No Inv.: 1359/Perp/79/1c~85859/Perp/73/1c~85803/Perp/73/1c
No Inv.: 11134/P/Perp/98/1c~105114/S/Perp/06/1c
Judul asli : "Human Relationship Skill"
No Inv.: 393/P/Perp/98/1c
No Inv.: 2381/P/Perp/98/1c
No Inv.: 597/S/Perp/98/6c
Judul asli : "Labor Economics, Choice in Labor Markets"
No Inv.: 273/P/Perp/98/1c