Challenging Problems in GeometryEbookChallenging Problems in GeometrybyAlfred S. PosamentierRating: 3 out of 5 stars3/5Save Challenging Problems in Geometry for later
Challenging Problems in AlgebraEbookChallenging Problems in AlgebrabyAlfred S. PosamentierRating: 5 out of 5 stars5/5Save Challenging Problems in Algebra for later
Dover Books on MathematicsEbook seriesDover Books on MathematicsbyRobert GilmoreSave Dover Books on Mathematics for later