Arregi, Karlos
Springer, 2012
eBooks
Cambridge University Press, 2009
eBooks
Wakeford, Richard E., author
World Health Organization, 1974
Buku Teks
Salvadori, Mario, author
Prentice-Hall, 1963
Buku Teks
Schodek, Daniel L., author
MIT Press, 1993
Buku Teks