International population dynamics 1950-79 demographic estimates for countries with a population of 5 million or more International Demographic Data Center
D.C U.S.Bureau of the Census , 1980
 Buku Teks SO
Mark and engels on the population bomb
edited by Ronald L. Meek and Steve Weissman
Ramparts Press , 1971
 Buku Teks
Population : a clash of prophets
edited by Edward Pohlman
New American Library, 1973
 Buku Teks SO
Petersen, William
Population
Macmillan, 1961
 Buku Teks
Petersen, William
Population
Macmillan, 1969
 Buku Teks SO