Anybody has an idea where I can get this particular book (solutions manual)?

Hello there, people.

I have this book about operations research called: Operations Research, an Introduction 8th Editon, by Hamdy Taha. And I’m looking for it’s solutions manual. Unfortunately however, the only thing that I found is a scanned version offered by some individuals on Google Groups for $12 (via Paypal). And, honestly, I don’t quite trust them, ‘coz you never know who they might be. So, I’m wondering if some of you might have any information as to where to get it safely. I’d be very thankful.