Basic statistics
Michael S. Lewis-Beck, editor
Sage Publications, 1993
Buku Referensi
Basic statistics with business appllications
John Wiley and Sons, Inc., 1967
Buku Teks
Hoel, Paul Gerhard, 1905-
Basic statistics for business and economics
Wiley, 1982
Buku Teks
Hoel, Paul Gerhard, 1905-
Basic statistics for business and economics
Wiley, 1971
Buku Teks
Bartz, Albert E
Basic statistical concept
Macmillan, 1981
Buku Teks