Till, William C.
Prentice-Hall, 1982
Buku Teks
Leffingwell, William Henry
McGraw-Hill , 1950
Buku Teks
Carter, Irl, author
AldineTransaction, 2011
Buku Teks
Briggs, David J., author
Longman Scientific & Technical, 1994
Buku Teks
Strahler, Alan H., author
John Wiley & Sons, 1997
Buku Teks