No Inv.: 417/P/Perp/97/1c
No Inv.: 3616-3625/P/Perp/97/10c
No Inv.: 1453/S/Perp/98/1c
Judul asli : "Intermediate Microeconomics : theory, issues, applications"
Judul asli : "Introductory Surveying"
No Inv.: 2707/Perp/85/1c
No Inv.: 15/Perp/s/88/1c
No Inv.: 85.747/Perp/S/73/1c~
No Inv.: 457/Perp/74/1c