No Inv.: 140013-140015/P/Perp/14/3c
Judul asli : "Communication of Innovations"
No Inv.: 1179-1183/P/Perp/94/5c~1232/P/Perp/87/1c
No Inv.: 549-556/S/Perp/98/8c
Tersedia Bibliografi dan Indeks.
Bibliografi : hlm. 329-332
No Inv.: 115100/S/Perp/08/1c
Bibliografi : hlm. 263-264