20 Segi hanguk soseul 25: Gaekji, hanssiyeon daegi, sampo ganeun gil, seom seom oksu, molgaewol-e sae
Changbi, 2005
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 42 : Dangsine daehaesea, gongjungnugak, gu phyeongmok ssieui bakhuibeolle, seupheumeui norae, syagaleui macule naerineun nun, ai
Lee In Sing; Choi Su Chul; Lee Seung Woo; Jung Chan; Park Sang Woo; Jang Jung Il
Changbi, 2006
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