Bibliografi : hlm. 224
Bibliografi : hlm. 383-384
Bibliografi : hlm. 115
Bibliografi : hlm. 359-360
Judul asli : "Group Communication : Discussion Processes and Application"
No Inv.: 2744-2748/P/Perp/92/5c~113672-113676/P/Perp/08/5c~127487-127491/P/Perp/10/5c
No Inv.: 113251-113254/P/Perp/08/4c~120926/SM/Perp/09/1c~139480-139482/P/Perp/14/3c
Judul asli : "Transitions from Authoritarium Rule"