Coale, Ansley J.
Princeton University Press, 1958
Buku Teks
Coale, Ansley J.
Princeton University PRess, 1972
Buku Teks
Wegelin, Emiel Arthur
Martinus Nijhoff Social Sciences Division, 1977
Buku Teks
Habakkuk, H.J.
Leicester University Press, 1972
Buku Teks
edited by American Writing Corporation
The World Bank , 1996
Buku Teks