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Chong-hyŏn Paek
Chajŏn'gŏ t'ago Okch'ŏn esŏ pomul ch'atki
Hyŏndae chŏngbo sahoe wa yulli
Ipchi ŭisa kyŏlchŏngnon
Isŏng ŭi yŏksa
kiŏp, sijang kŭrigo chŏngchʻijŏk sigak
Nonje chungsim saengsan kwalli yoron
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Saengsan kyehoek mit chaego tʻongje
最適製造數量計券에關한硏究