Hogue, Kathleen
Welker, 1988
Buku Teks
Rufenacht, Nils, author
[Springer, ], 2012
eBooks
Rokes, Willis Park
Cal. Insurors Press , 1971
Buku Teks
Huebner, S. S., author
Appleton-Century Crafts, 1958
Buku Teks
Black, Kenneth, author
Prentice-Hall, 1994
Buku Teks