Gourd, L. M.
Edward Arnold, 1984
Buku Teks
Giachino, J.W.
American Technical Pub., 1982
Buku Teks
Little, Richard L., author
McGraw-Hill, 1973
Buku Teks
Kenyon, W., author
Pitman, 1982
Buku Teks
Cary, Howard B., author
Prentice-Hall, 1989
Buku Referensi