Murphy, Mary E., author
Richard D. Irwin, 1966
Buku Teks
Pahler, Arnold J., author
Harcourt Brace Jovanovich, 1985
Buku Teks
Pahler, Arnold J., author
Harcourt Brace Jovanovics , 1981
Buku Teks
Leonard, William G., author
McGraw-Hill Company , 1963
Buku Teks
Maxwell, Ronald J., author
Prentice-Hall, 1990
Buku Teks