edited by Philip M. Hauser
Prentice-Hall, 1969
Buku Teks
Population Institute East-West Center, 1987
Majalah, Jurnal, Buletin
American Association for the Advancement of Science, 1975
Buku Teks
Spengler, Joseph J. (Joseph John), 1902-1991
The Free Press of glencoe, 1963
Buku Teks
Berelson, Bernard
The Population Council, 1975
Buku Teks