Dieterle, D. Lyle, author
Houghton Mifflin, 1962
Buku Teks
edited by Raymond J. Chambers and G.W. Dean
Garland Publishing, 1986
Buku Teks
Kastantin, Joseph T., author
Quorum Books, 1988
Buku Teks
Leonard, William G., author
McGraw-Hill, 1960
Buku Teks
Murphy, Mary E., author
Richard D. Irwin, 1966
Buku Teks