Fifty Lectures for Mathcounts Competitions (4) (Volume 4)
Jane Chen is the author of the book "The Most Challenging MATHCOUNTS® Problems Solved"- 2001-2010 National Mathcounts Solutions" officially published by Mathcounts.org. Her other publications include: Twenty Problems Solving Skills for Mathcounts. Twenty more Problems Solving Skills for Mathcounts. 50 Lectures for American Math Competitions.