No Inv.: 492-495/P/Perp/94/4c~3356-3360/P/Perp/95/5c
No Inv.: 13511/P/Perp/94/1c
No Inv.: 1582-1584/BD/Perp/91/3c
No Inv.: 134-135/AF/Perp/92/2c
No Inv.: 884-885/BD/Perp/86/2c
No Inv.: 361/S/Perp/90/1c~307/YA/Perp/88/1c
No Inv.: 904/S/Perp/92/1c~673/S/Perp/88/1c~2065/S/Perp/87/1c~2007-2009/Perp/85/3c
No Inv.: 3454-3456/P/Perp/92/5c~4963-4964/BP3KN/Perp/86/2c~558-560/P/Perp/92/3c~5178-5182/P/Perp/92/5c~4570-4574/P/00/5c~104205-104209/P/Perp/06/5c
Judul asli : "Effective Speaking"
No Inv.: 771-772/PSM/Perp/96/2c~2804-2813/P/Perp/97/10c~140757/PH/Perp/14/1c