Ko, Y. (1995). Kugŏhak yŏn'gu paengnyŏnsa. Ilchogak.
Chicago Style (17th ed.) CitationKo, Yŏng-gŭn. Kugŏhak Yŏn'gu Paengnyŏnsa. Sŏul: Ilchogak, 1995.
MLA (9th ed.) CitationKo, Yŏng-gŭn. Kugŏhak Yŏn'gu Paengnyŏnsa. Ilchogak, 1995.
Warning: These citations may not always be 100% accurate.