أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
I'm preparing for the Project Management Professionals Exam.
You need to visit Amazon.com and choose the best version to buy: new, used , Kindle, or rent it. You need to click into the following website: http://www.amazon.com/Guide-Project-Management-Body-Knowledge/dp//ref=sr_1_1?ie=UTF8&qid=&sr=8-1&keywords=pmbok