Farmer, R.D.T.
Blackwell Scientific Publ., 1983
Buku Teks
Farmer, R.D.T.
Blackwell Scientific Publ., 1977
Buku Teks
Farmer, R.D.T.
Oxford Blackwell Scientific 1983,
Buku Teks
Labarthe, Darwin R., author
Jones & Bartlett Publishers, 2008
Buku Teks
Trostle, James A, author
Cambridge University Press, 2005
Buku Teks