Hillman, Arye L.
IMF , 2002
Buku Teks
World Health Organization, 2003
Buku Teks
Coale, Ansley J., author
Princeton University Press, 1961
Buku Teks
Coale, Ansley J., author
Princeton University PRess, 1972
Buku Teks
Coale, Ansley J., author
Princeton University Press, 1958
Buku Teks