Lee, Gwan-Gyu, author
Hakyo Munbeobron = 학교 문법론
Worin, 1999
Buku Teks
Kim, Mi-hua, author
Godung hakyo honja 900 漢 bone kethnae 字 = (Middle 900 words) finished on time 漢 字
Joongang Edubooks, 2010
Buku Referensi