Mavroidis, Petros C., author
MN West, 2013
Buku Teks
Hoyle, Mark S.W.
Laureate Press, 1981
Buku Teks
Bossche, Peter van den, author
Cambridge University Press, 2016
Buku Teks
Heidemann, Maren
Springer, 2012
eBooks
Stephan, Paul B.
Charlottesville, 1996
Buku Teks