Ilche kangjŏmgi, chŏhang kwa kyemong ŭi kyoyuk sasanggadŭl - Ko, Wŏn-sŏk; Pak, Ŭi-su; Pak, Ŭi-su (Pagyŏng Story, 2020)
Articles originally presented at yŏnch'a haksul taehoe held in November 16, 2019