Kember. N.F., author
Edward Arnold, 1984
Buku Teks
by William O. Rasmussen ...[et al.]
Westview Press, 1985
Buku Teks
Gross, Jonathan L., author
Chapman & Hall/CRC Taylor & Francis Group, 2008
Buku Teks
Harper, G. Neil, author
McGraw-Hill Inc, 1986
Buku Teks
Boore, William F., author
McGraw-Hill, 1968
Buku Teks