Black, Jaquelyn G.
John Wiley & Sons, 2008
Buku Teks
Stanier, Roger Y.
Prentice-Hall, 1963
Buku Teks
Burrows, William E.
W.B. Saunders, 1959
Buku Teks
Brock, Thomas D.
Prentice-Hall, 1973
Buku Teks
William Bawen Sarles ...[et.al.]
Harper & Row, 1956
Buku Teks