277 pages
Korean language
Published 1990 by Sagyejŏl.
Martin Gardner: Aha! (Korean language, 1990, Sagyejŏl)
277 pages
Korean language
Published 1990 by Sagyejŏl.
Contains puzzles that first baffle and then delight problem solving addicts. Grew out of a collaboration between Bob Tappay and Martin Gardner to enliven the learning of mathematics.