edited by Joyce Maschinski and Kristin E. Haskins
Island Press, 2012
eBooks
Spellerberg, Ian F.
Cambridge University Press, 1992
Buku Teks
edited by Jean Michel Merillon, Kishan Gopal Ramawat
Springer, 2012
eBooks
Jacobs, William P.
Cambridge University Press, 1979
Buku Teks SO
Elonka, Stephen Michael
McGraw-Hill, [1974, c1975]
Buku Teks SO