editor, Jens Gotze, Robert Mockel
Springer, 2012
eBooks
Blackburn, William H.
W.C. Brown Publishers, 1988
Buku Referensi
edited ny Keith Friye
Hutchinson Ross, 1981
Buku Referensi
Mason, Brian, author
W.H. Freeman, 1968
Buku Teks
Dana, Edward Salisbury
John Wiley & Sons, 1972
Buku Teks