Lee Sangsa

year of pub­li­ca­ti­onISBNauthor(s)title
2006978-89-327-0039-7unknownLearning utilizing okpyeon (Korean edition)
1999978-89-327-0040-3Nam KwangwooKorean Dictionary (standard) (Korean edition)
2000978-89-327-0045-8Ha ChunghoEnigma (Korean edition)