Griffiths, Richard, 1935-, author
Constable, 1994
Buku Teks
Saragih, Rondang Delima, author
1996
UI - Skripsi (Membership)
Dimock, Marshall Edward, author
Henry Holt , 1953
Buku Teks
Brogan, D.W. (Denis William), author
Harper & Brothers, 1957
Buku Teks
Zhukov, Georgi K.
Cooper Squa Press, 2002
Buku Teks