Dolhinow, Phyllis
McGraw-HIll, 2002
Buku Teks
Hirohisa Hirai, editor
[, Springer], 2012
eBooks
Nowak, Ronald M.
The Johns Hopkins University Press, 1999
Buku Referensi
Scheele, William E.
World Publishing, 1957
Buku Teks
edited by Peter M. Kappeler and David P. Watts
Springer, 2012
eBooks