No Inv.: 1302-1311/P/Perp/97/10c
No Inv.: 782/S/90/1c~1537/S/88/1c~6489-6493/P/92/5c~2226-2230/P/95/5c~153/S/99/1c
Bibliografi : hlm. 76-81
Bibliografi hlm. : 222-250
Bibliografi : hlm. 147-152 No Inv.: 140380/PH/Perp/14/1c
No Inv.: 71919, 47677/01/2c
No Inv.: 133194/S/Perp/12/1c
No Inv.: 130425/SM/Perp/12/1c
No Inv.: 4279/P/Perp/91/1c
Judul asli : "State of the World 1993"