Dutton., 1963.
Buku Teks
Ader, Emile B.
Barron's Educational , 1970
Buku Teks
Schatten, Fritz, author
Frederick A. Praeger, 1966
Buku Teks
Rangga Daud Hadi, author
2015
UI - Skripsi (Membership)
Plamenatz, John, author
Longmans, Green, 1954
Buku Teks