Autor: Greg Williams, 2 titluri

Negotiating with a Bully: Take Charge and Turn the Tables on People Trying to Push You Around, Paperback

Greg Williams

CompTIA Security+ All-in-One Exam Guide, Fifth Edition (Exam SY0-501)

Wm. Arthur Conklin,Greg White,Dwayne Williams,Chuck Cothren,Roger L. Davis