No Inv.: 2004/P/Perp/92/1c~14602/P/Perp/94/1c
Judul asli : "Teory and Problems of International Economics"
No Inv.: 1824-1828/P/Perp/95/5c~7113-7115/P/Perp/97/3c
No Inv.: 3675-3676/P/Perp/96/2c
Judul asli : "Theory and Problems of Microeconomic Theory"
Judul asli :"Managerial economics"
No Inv.: 102057-102066/S/Perp/05/10c~115486/SM/Perp/08/1c