Pi, Ying-Hsien
World Anti-Communist League, 1986
Buku Teks
Fowkes, Ben, author
Palgrave, 2002
Buku Teks
Hinton, Harold C., author
Houghton Miffiln, 1966
Buku Teks
Petkov, Krastyu
Routledge , 1991
Buku Teks
Skilling, Gordon H., author
Thomas Y. Crowell, 1966
Buku Teks