Milroy, Lesley, author
Blackwell Publishing, 2003
Buku Teks
Artikel Jurnal
editors, Stuart C. White, Michael J. Pharoah
Elsevier, Saunders, 2014
Buku Teks
Abelson, Harold, author
McGraw-Hill, 1985
Buku Teks
Abelson, Harold, author
MIT Press, 1985
Buku Teks