20 Segi hanguk soseul 50 : Phureun sagwaga itneun gukdo, black postan, riqidasonamu syahe gatdagu, gomphangikot, mangwongyeung
Changbi, 2010
Buku Teks
20 Segi hanguk soseul 37 : Urideul-e ilgeureojin yeongung, ...
Jo Sung Ki, Lee Mun Yul, Choi Si Han
Changbi, 2009
Buku Teks
20 Segi hanguk soseul 41 : Sa phyeong yeok, soji jameikhayeo annyeong, chingguneun Meolli gasspodo, gitbal
Lim Chuk Woo; Lee Chang Dong; Kim Yu Taek; Jung Do Sang; Hong Hee Dam
Changbi, 2006
Buku Teks
20 Segi hanguk soseul 46 : Sesang kkteui golmakdeul, swetmulcheoreom, saebyeok chuljeong, bombi naerineun nal, maehyang
Changbi, 2009
Buku Teks
20 Segi hanguk soseul 43 : Buyongsan, kangthong tagae ga obneun maeul, mareul chajasea, ...
Choi Sung Kak; Gu Hyo Seo; Lee Sun Won; Sim Sang Dae; Yun Dae Nyeong
Changbi, 2006
Buku Teks