Camara, Dom Helder, author
Insist Press, 2000
Buku Teks
Armstrong, Karen, author
Harper Perennial, 2005
Buku Teks
Hodge, Paul
Springer, 2012
eBooks
Elmasri, Ramez, author
McGraw-Hill, 2010
Buku Teks
Chang Kia-Ngau
Massachusetts Institute of Technology, 1958
Buku Teks