Salas, Rafael M.
International population assistance : the first decade : a look at the concepts and policies which have guided the UNFPA in its first ten years
Pergamon Press, 1979
 Buku Teks SO
World population policies
edited by Jyoti Shankar Singh
Praeger Special Studies, 1979
 Buku Teks SO
Russell, Sir E. John
World population and world food supplies
George Allen and Unwin, 1961
 Buku Teks SO
Salas, Rafael M.
People : an international choice, the multirateral approach to population
Pergamon Press , 1977
 Buku Teks SO
Chen, Kuan I.
World population growth and living standards
Bookman Associates, 1960
 Buku Teks SO