Bischoff, Joyce
Data warehouse : practical advice from the experts
Prentice-Hall, 1997
 Buku Teks SO
Mastering subject specialties: practical advice from the field
Karen Sobel, editor
Libraries Unlimited, an imprint of ABC-CLIO, LLC, 2016
 Buku Teks SO
Blood, Rebecca
The weblog handbook : practical advice on creating and maintaining your blog / Rebecca Blood
Perseus Publishing, 2002
 Buku Referensi
Kerridge, Jon
Occam programming: a practical approach
Blackwell, 1987
 Buku Teks SO
Moore, Victor
A practical approach to planning law
Blackstone, 1997
 Buku Teks SO