Jerker B. Svantesson
Intersentia, 2018
eBooks
MacIver, Robert M.
Alfred A. Knopf, 1952
Buku Teks
Janda, Kenneth
Houghton Mifflin, 2000
Buku Teks
Kenneth Janda, Jeffrey M. Berry, Jerry Goldman, Deborah J. Schildkraut, Paul Manna
Cengage Learning, 2018
Buku Teks
Monika Kuschewsky, general editor
Thomson Reuters, 2012
Buku Teks