Khruschchov, N.S.
Foreign Languages Publishing House, 1959
Buku Teks
Singh, Bilveer, 1956-, author
Gadjah Mada University Press , 1994
Buku Teks
McWhinney, Edward, author
A.W. Sythoff, 1964
Buku Teks
Barghoorn, Frederick C.
Princeton University Press, 1960
Buku Teks
Dallin, David J., author
Yale University Press, 1956
Buku Teks