Plant, W. Gunter, author
Lester and Orpen, 1978
Buku Teks
Bruce W. Char, Keith O. Geddes, Gaston H. Gonnet, Benton L. Leong, Michael B. Monagan, Stephen M. Watt
Springer-Verlag, 1991
Buku Referensi
Artikel Jurnal
Artikel Jurnal
Weingand, Darlene E., author
[American Library association, ], 2001
eBooks