Brown, Byron Wm, author
John Wiley & Sons, 1977
Buku Teks
Keeping, E.S., author
Van Nostrand Reinhold, 1962
Buku Teks
Dobson, Annette, author
Chapman and Hall, 1983
Buku Teks
Roy, Bimalendu N.
John Wiley & Sons, 2002
Buku Teks
Rao, Y.V.C., author
Wiley Eastern, 1993
Buku Teks