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Suŏp chal hanŭn kyosa nŭn rut'in i itta
Yu, Yŏng-sik (Elementary school teacher) · T'ek'ŭbil Kyoyuk
303 sayfa · 2020
Lesson planning / Effective teaching
Pukhan, yŏrhan p'yŏn ŭi esei ro mal hada
Yu, Yŏng-sik (Researcher in North Korean studies) · Ch'ang kwa Hyŏn
255 sayfa · 2015
History / Politics and government / Social conditions / Human rights
Ich'ŏn Sŏlbong sansŏng 2-ch'a palgul chosa pogosŏ
Kyŏng-sik Pak, Yŏng-il So, Yu-ri Pang · Ich'ŏn-si
497 sayfa · 2001
Antiquities / Fortification / Excavations (Archaeology)