No Inv.: 3351-3352/P/Perp/98/2c
Bibliografi : hlm. 439-446 No Inv.: 144668/SM/Perp/14/1c
No Inv.: 66383/P/00/1c~106653/P/Perp/06/1c~126221/P/Perp/10/1c
No Inv.: 79073/S/01/1c
No Inv.: 132835/SM/Perp/12/1c
Judul asli :"Economics"
No Inv.: 128205/SM/Perp/10/1c
No Inv.: 54897, 54896, 54895/01/3 C.