Frost, Raymond, 1960-
Pearson Prentice Hall, 2001
Buku Teks
Krug, Steve
Serambi Ilmu Semesta , 2013
Buku Teks
Hofstetter, Fred Thomas, 1949-
McGraw-Hill, 2003
Buku Teks
Westman, Stephen R.
[American Library association, American Library association], 2006
eBooks
Redish, Janice (Ginny)
Elsevier, 2012
Buku Teks