To-sang Yi

• Han'guk kodaesa, pakkwŏ ssŏya hal se kaji munje
• Ilche ŭi yŏksa chʻimnyak 120-yŏn
• Kodae Chosŏn, kkŭt naji anŭn nonjaeng
• Kugwi sujun ŭl tʻonghae pon minjoksa chaehaesŏk