Hwahak.
By: chŏja De. Em. Kkiryussŭkkin ; yŏkcha Chʻoe Yun-sik.
Publisher: Hagu Sŏbang
Published: 1957
Place of publication: Tonggyŏng
Language: kor
Number of pages: 132
Notes: "Chosŏn Minjujuŭi Inmin Konghwaguk Kyoyuksŏng pijun."

Hanʼguk Kyogwasŏ Changsŏ (Library of Congress).