Austin, Richard L., author
Van Nostrand Reinhold, 1983
Buku Teks
Austin, Richard L., author
Van Nostrand Reinhold, 1984
Buku Teks
Austin, Richard L., author
Van Nostrand Reinhold, 1983
Buku Teks
Cooper, David E., author
Clarendon Press , 2006
Buku Teks
Tanner, Ogden., author
Time-Life Books, 1978.
Buku Referensi