Roberson, John A., author
Houghton Miffiln, 1975
Buku Teks
Shepherd, D. G. (Dennis G.), author
Harcourt, Brace World, 1965
Buku Teks
Allen, Theodore, author
McGraw-Hill Kogakusha, c1972
Buku Teks
Rosenfeld, Sam
Harvey House, 1965
Buku Teks
Sandor, Bela I. (Bela Imre)
Prentice-Hall, 1983
Buku Teks