@book{18172,
	author = {Kim, Hyŏng-sŏk, and Han'guk Yŏngsang Charyowŏn (Seoul, Korea),},
	title = {21-segi Han'guk yŏnghwa :},
	publisher = {Aelp'i,},
	year = {2020.},
	address = {Sŏul-si :},
	edition = {Ch'op'an.}
}