King, G. Brooks
American Book Company, 1963
Buku Teks
Wood, Jesse H.
Evenston Harper, 1963
Buku Teks
Keenan, Charles W.
Harper and Row, 1966
Buku Teks
Wood, Jesse H.
Harper & Row, 1972
Buku Teks
Campbell, Richard D.
Harcourt, Brace & World, 1968
Buku Teks