Hamilton, Mark
Neo-tech books, 2000
Buku Teks
Pasricha, Neil
G.P. Putnam's Sons, an imprint of Penguin Random House LLC, 2016
Buku Teks
Spendolini, Michael J.
New York : Amacom 1992 , 1992
Buku Teks
marino, Paul L
Lippincott Williams & Wilkins, 2007
Buku Teks
Miller, William
New York: Columbia University, 1949
Buku Teks