Sŏgang Han'gugŏ: Hanashinagara manabu seikatsu Kankokugo by Ch'oe, Chŏng-sun, Sŏgang Taehakkyo., Han'gugo Kyoyugwŏn 0 Type: Book
Sŏgang Han'gugŏ new: Sogang Korean new series : munbŏp, marhagi, tŭtki… by Kim, Sŏng-hŭi, Ch'oe, Chŏng-sun, Kim,, Chi-ŭn, Kim,, Hyŏn-jŏng 0 Type: Book
New Sŏgang Han'gugŏ: Sogang Korean by Kim, Sŏng-hŭi, (Lecturer of Korean language education), Sŏgang Taehakkyo., Korean Language Education Center, Ch'oe, Chŏng-sun, Sŏgang Taehakkyo., Han'gugo Kyoyugwŏn 0 Type: Book
