Arendt, Hannah, 1906-1975, author
Penguin, 1965
Buku Teks
Smith, R. B. (Ralph Bernard), 1939-2000., author
Taylor and Francis , 2012
Buku Teks
Sheth, Jagdish N., author
Free Press, 2002
Buku Teks
Han, Zhen, author
China Renmin University Press, 2015
eBooks
Earl, G. W. (George Windsor), 1865-, author
Oxford University Press, 1971
Buku Teks