Sarumpaet, Riris Kusumawati, author
Faculty of Humanities University of Indonesia, 2012
Artikel Jurnal
edited, Bernard Berelson
University of Chicago, [date of publication not identified]
Buku Teks
The Johns Hopkins University Press , 1972
Buku Teks
The population council, 1977
Buku Teks
Austin, James E.
Gunn & Hani Publishers, Inc., 1981
Buku Teks