Burton, David M.
McGraw-HIl, 1996
Buku Teks
McFarland, Dora
Mass. Heath , 1968
Buku Teks
Whitehead, Alfred North, 1861-1947, author
Oxford University Press, 1969
Buku Teks
Miller, Charles D., author
Scott, Foresman, 1969
Buku Teks
Kandasamy, W.B. Vasantha, author
HEXIS, 2005
Buku Teks