Weaver, Robert F., author
McGraw-Hill, 1999
Buku Teks
Primrose, S.B., author
Blackwell, 1991
Buku Teks
Barrow, Gordon M., author
McGraw-Hill, 1962
Buku Teks
Stent, Gunther S., author
W H Freeman, 1971
Buku Teks
Brown, T.A.
Chapman & Hall, 1992
Buku Teks