Rose, John David
Authorhouse, 2005
Buku Teks SO
Machan, Tibor R.
Yayasan Obor Indonesia, 1989
Buku Teks SO
Fareed Zakaria
Ina Publikatama, 2013
Buku Teks SO
Fallows, James M.
Houghton Mifflin, 1989
Buku Teks SO
Griffin, Ricky W.
Erlangga, 2007
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