No Inv.: 42/S/Perp/96/1c
No Inv.: 407/Perp/83/1c
No Inv.: 33-34/BD/Perp/86/2c
No Inv.: 2154/S/Perp/89/2c
No Inv.: 1752-1753/Perp/85/2c
No Inv.: 1734-1735/Perp/85/2c
No Inv.: 1700-1701/Perp/85/2c~7919-7923/P/Perp/92/5c
No Inv.: 33-34/Perp/84/2c
No Inv.: 231-232/S/Perp/90/2c~1607/S/Perp/87/1c~2474-2476/S/Perp/87/3c
Judul asli : "The Task of Law"