Hi Mohammed,
To start, much of the content of the GMAT has not changed since 2016, but the FORMAT of the GMAT has (it's now a slightly shorter Exam). Thus, you would probably be fine studying with those older books, although it's highly unlikely that a set of books would be enough on their own to help you "ace the GMAT."
Based on your post-history, it appears that you are coming back to your studies after more than 1 year "off", so it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at
www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so that you can refamiliarize yourself with the basic content and question types, then that's okay - but you shouldn't wait too long to take that initial CAT. That score will give us a good sense of your current strengths and weaknesses and will help provide a basis for comparison as you continue to study. A FULL CAT takes about 3.5 hours to complete, so make sure that you've set aside enough time to take it in one sitting. Once you have those scores, you should report back here and we can come up with a study plan.
I'd like to know a bit more about your timeline and goals:
1) What is your goal score?
2) When are you planning to take the GMAT?
3) When are you planning to apply to Business School?
GMAT assassins aren't born, they're made,
Rich