Martin Brinkworth
Springer, 2012
eBooks
Simpson, George Gaylord, author
Yale University Press, 1952
Buku Teks
Monosson, Emily, author
Island Press, 2012
eBooks
Geist, Valerius
Springer-Verlag, 1978
Buku Teks
Darlington, Philip J., author
John Wiley & Son, 1980
Buku Teks