Giddens, Anthony, author
Beyond left and right : the future of radical politics
IRCisoD, 2003
 Buku Teks
Handbook of vinyl polymers: radical polymerization, process, and technology
Munmaya K. Mishra, Yusuf Yagci, editor
CRC press, 2009
 Buku Referensi
Pluralisme radikal sebagai keadilan = Pluralism radical as justice
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2012
 UI - Skripsi (Open)
Jones, Joseph, author
Radical cousins : nineteenth century American and Australian writers
University of Queensland Press, 1976
 Buku Teks
Worrall, David
Radical culture: discourse, resistance and surveillance 1790-1820/David worral
Harvester Wheatsheaf, 1992
 Buku Teks