edited by Statistical Research and Training Institute
Japan Statistical Association, 2004
Buku Referensi
Tokyo Bureau statistics office of the Prime Minister 1967
Buku Teks
Japan Statistical Association, 1975
Buku Teks
Clements, Richard Barret, author
Prentice-Hall, 1994
Buku Referensi
Bachtiar Alam, author
Yayasan Obor Indonesia, 2002
Buku Teks