Farnsworth, Terry
McGraw-Hill, 1981
Buku Teks
Journal of Population, 10 (2) 2004 : 35-78, 2004
Artikel Jurnal
Podolinsky, Michael A, author
McGraw-Hill, 2013
Buku Teks
Finkelstein, Sydney, author
Intermasa, 2003
Buku Teks
Cobbs, Price M., author
[American Management Association, ], 2003
eBooks