No Inv.: 440-459/Perp/89/20c
No Inv.: 248/AF/Perp/91/1c~469/AF/Perp/91/1c~109649-109650/PH/Perp/07/2c
Judul asli : "Group Communication : Discussion Processes and Application"
No Inv.: 296/Perp/89/1c~52/AF/Perp/90/1c
No Inv.: 303/S/Perp/90/1c~860/S/Perp/88/1c~208/S/Perp/89/1c~2172-2176/S/Perp/92/5c~771/S/Perp/93/1c~85583/S/Perp/1c~120438/SM/Perp/09/1c
No Inv.: 880-882/P/Perp/92/3c~6377-6381/P/Perp/92/5c~835-839/P/Perp/94/5c~6854-6863/P/Perp/97/10c
No Inv.: 6002-6005/P/Perp/92/4c~12425-12429/P/Perp/94/5c~5557-5566/P/Perp/97/10c
No Inv.: 642/AF/Perp/91/1c