Rice, Richard G., author
John Wiley & Sons, 1994
Buku Teks
Wiig, Edwin O.
D.Van Nostrand Company, 1954
Buku Teks
Alexander, M.J.
Science Research Associates , 1974
Buku Teks
Grant, F.S., author
McGraw-Hill, 1965
Buku Teks
Beckmann, Petr, author
Harcourt, Brace & World, 1967
Buku Teks