Aha!
By: Matʻin Gadŭnŏ chiŭm ; Yi Chʻung-ho omgim.
Contributors: Yi, Chʻung-ho.
Publisher: Sagyejŏl
Published: 1990
Place of publication: Sŏul
Language: kor
Number of pages: 277
Subjects: Mathematical recreations.; Problem solving.; Puzzles.
Work titles: Aha! Aha! insight.
Notes: Translation of: Aha! Aha! insight.