B126, Hyundai Hyel, ,Gongdeok-Dong, Mapo-Gu, Seoul, Seoul
T-6111, Garden5 Life, Munjeong-dong Songpa-gu, Seoul
661-1 Bukok-gi, Jangyou-myen, Gimhae-si,, Gyeongsangnam-do
Mok dong
bucheon techno park 102-804 ,364 samjungdong ohjungku , Gyeonggi-do
513, Yeongdong-daero, Gangnam-gu,, Seoul
14F No.1407, Kolon Digital Tower Aston, 505-14, Gasan-dong Geumcheon-gu, Seoul
6F. Korea Federation of Teacher's Association(K.F.T.A), 142 Umyeon-dong Seocho-gu, Seoul
102-707 LG apt. , Bugok dong, Geumjeong-gu
#510, Kolon Science Valley 2nd, 811, Guro-dong Guro-gu, Seoul
2-Ga, Namhang-dong, Youngdo-gu Busan, Gyeongsangnam-do
689-6, Geumjeong-dong Gunpo-si, Gyeonggi-do