Padover, Saul K. (Saul Kussiel), author
Praeger, 1967
Buku Teks
Huszar, George B. de (George Bernard), 1919-1968, author
Littlefield, Adams, 1959
Buku Teks
edited by Fritz Morstein Marx
Prentice-Hall, 1952
Buku Teks
Siregar, Hotrun, author
2001
UI - Tesis (Membership)
Saiful Syam, author
1995
UI - Tesis (Membership)