edited by G.A. Kerkut
Oxford University Press, 1985
Buku Teks
Osborne, Adam, author
McGraw-Hill, 1983
Buku Teks
Moverley, John, author
Harper-Collins, 1986
Buku Teks
Long, Larry E., author
Prentice-Hall, 1992
Buku Referensi
McGraw-Hill , 1984
Buku Teks