No Inv.: 80792/P/02/1c
No Inv.: 80662-80663/P/02/2c
No Inv.: 80692/P/02/1c
No Inv.: 80800/P/02/1c
No Inv.: 80802/P/02/1c~112749/P/Perp/08/1c
No Inv.: 80911/P/02/1c
No Inv.: 80942-80948/P/02/7c~89713/PSM/Perp/04/1c~130162/S/Perp/11/1c
No Inv.: 80934-80935/P/02/2c
No Inv.: 80878/P/02/1c
Judul asli :"The Economic theory of cooperative"