국어문법의연구 Volume 3 of Kugŏ munpŏp ŭi tʻamgu, Ki-sim Nam, ISBN 8976261844
What stands out is how the illustrated panels tell a second story.
Item Tag: 남기심
국어문법의연구 Volume 2 of Kugŏ munpŏp ŭi tʻamgu, Ki-sim Nam,
What stands out about this activity book is the humor sprinkled in the puzzles.
국어문법의연구 Volume 1 of Kugŏ munpŏp ŭi tʻamgu, Ki-sim Nam
This activity book includes tangram puzzles that challenge spatial reasoning.