No Inv.: 691/S/Perp/90/1c
No Inv.: 480-481/PS2PT/Perp/95/2c
No Inv.: 117733/P/Perp/09/1c
No Inv.: 111964/P/Perp/08/1c
Bibliografi : hlm. 365-372 No Inv.: 147268,147269/P/Perp/15/2c
No Inv.: 1268-1269/Perp/82/2c~105139/S/Perp/06/1c
No Inv.: 475-476/PS2PT/Perp/95/2c~4905/P/00/1c~66064/P/00/1c
No Inv.: 1754/P/Perp/91/1c
No Inv.: 249/PS2PT/Perp/95/1c