Shao, Stephen P.
Statistics for business and economics :
Virginia s.n,
 Buku Teks
Mann, Prem S
Introductory statistics
John Wiley & Sons, 1994
 Buku Teks
Pieper, Ursula
Uber die aussagekraft statisticher methoden fur die linguistische stilanalyse
Tubingen Gunter Narr Verlag 1979
 Buku Teks
Statistik lingkungan hidup indonesia : environment statistics of Indonesia
Badan Pusat Statistik,
 Majalah, Jurnal, Buletin
Baisnab, A.P.
Elements of probability and statistics/A.P. Baisnab, Manoranjan Jas
New Delhi Tata McGraw-Hill 1993,
 Buku Teks