No Inv.: 113212-113213/P/Perp/08/2c
Judul asli : "Theory and Problems Operation Research"
No Inv.: 83405-83409/P/Perp/FIP/02/5c
Judul asli : "Introduction to Psychology"
No Inv.: 1244-1245/BD/Perp/86/2c
No Inv.: 1364-1365/BD/Perp/82/2c~1406-1407/BD/Perp/86/2c
No Inv.: 112705/P/Perp/08/1c