Palmer, Claude Irwin, author
McGraw-Hill, 1994
Buku Teks
Armstrong, James W., author
Macmillan, 1970
Buku Teks
Suvorov, Ierofei Fedorovich, author
Peace, 1963
Buku Teks
Kaliski, Burton S.
Harcourt Brace Jovanovich, 1982
Buku Teks
Whitehead, Alfred North, 1861-1947, author
Oxford University Press, 1969
Buku Teks