No Inv.: 2785-2789/P/Perp/92/5c~8697-8700/P/Perp/92/4c~111/S/Perp/90/1c~75383,75386,75387/01/3C~76579/S/01/1c
No Inv.: 79473/01/1~1720-1723/Perp/85/4c
No Inv.: 926-945/P/Perp/97/20c
No Inv.: 1631-1635/P/Perp/95/5c
Judul asli : "Group Communication : Discussion Processes and Application"
No Inv.: 1346-1350/P/Perp/98/5c
No Inv.: 225-226/S/Perp/88/2c~2106-2115~73813/S/P/Perp/92/10c~75375-75376/01/1c~78872/S/01/1c
No Inv.: 859/S/Perp/90/1c~1540/S/Perp/89/1c~9510-9514/P/Perp/97/5c~104135-104139/P/Perp/06/5c~66411/S/Perp/00/1c
No Inv.: 119884-119886/P/Perp/09/3c~127197-127201/P/Perp/10/5c
Orasi Ilmiah Fakultas Pertanian IPB