Andy Liu

• Arithmetical Wonderland
• Grade Five Competition from the Leningrad Mathematical Olympiad
• Hungarian Problem Book III
• S.M.A.R.T. Circle Overview
• Hungarian problem book
• Mathematical Puzzle Tales from Mount Olympus
• Mathematical Recreations from the Tournament of the Towns
• Problem Books
• Puzzles of Nobuyuki Yoshigahara
• Solomon Golomb's Course on Undergraduate Combinatorics
• Tasty Japanese Morsels in Recreational Mathematics