Ostle, Bernard
The Iowa State University Press, 1963
Buku Teks
Lawson, Tom R., author
Routledge, 2019
Buku Teks
Holloway, Immy, author
Blackwell Science, 1997
Buku Teks
Fisher, Ronald A., author
Oliver and Boyd , 1950
Buku Teks
Hodges, J. L., author
Holden-Day, 1967
Buku Teks