by William J. Robert [and others]
Prentice-Hall, 1967
Buku Teks
by Daniel V. Davidson [and others]
Kent, 1987
Buku Teks
J. David Reitzel [and others]
McGraw-Hill, 1990
Buku Referensi
by Ralph C. Hoeber ... [et al.]
McGraw-Hill, 1986
Buku Teks
Lawson, R.G., author
Butterworth-Heinemann, 1992
Buku Referensi