No Inv.: 274/S/Perp/88/1c~519-520/S/Perp/90/2c
No Inv.: 1042-1043/S/Perp/89/2c~2370/S/Perp/87/1c
No Inv.: 018/AF/Perp/91/1c~122/AF/Perp/91/1c
Judul asli : "Group Communication : Discussion Processes and Application"
No Inv.: 985/S/Perp/90/1c~7634/S/01/1c~76552/S/01/1c
Judul asli : "Perspectives on the Sociology of Education : an Introduction"
No Inv.: 3121,58164,38412,15677,150926,101509/S/Perp/6c
No Inv.: 183/AF/Perp/92/1c
No Inv.: 410/S/Perp/91/1c~249/S/Perp/90/1c~1115/S/Perp/89/1c~455/S/Perp/92/1c~2402-2403/Perp/87/3c~2470/SM/Perp/87/1c~66/SM/Perp/88/1c~208/SM/Perp/88/1c