Shi Biqiu, author
China Renmin University Press, 2015
eBooks
Arblaster, Anthony, author
Open University Press, 1987
Buku Teks
Woytinsky,W.S
The Vanguard Press,Inc, 1961
Buku Teks
Woytinsky, W.S.
Vanguard Press, 1961
Buku Teks
Parenti, Michael, author
Thomson, 2008
Buku Teks