T'ongil, on kil kal kil
Subtitle: Togil t'ongil 30-chunyŏn kinyŏm Son Ki-ung ŭi t'ongil k'allŏm
Publisher: Obŏ P'ŭllou
Published: 2020
Place of publication: Sŏul
Language: kor
ISBN-13: 9791197119309