Portuguese, Biology, Mathematics, and Physics Exam/Test Preparation Books

You can purchase just one or as many of the available books as you wish. Although most of the books have seen very little use, all are being sold at a 50% discount. You may verify the original prices on the publishers' websites, and I can also send you photos showing the respective original prices. All books from the first image have already been sold :) Second image: Each book is sold for €2.95 (originally purchased for €5.90) Third image: Sold for €11 (originally purchased for €22) Fourth image: Sold for €6.50 (originally purchased for €13) Fifth image: Sold for €6.95 (originally purchased for €13.90)