Chʻoego kyŏngyŏngja rŭl wihan saengsansŏng hyŏksin chŏllyak
By: Yun Tŏk-kyun chŏ
Edition: Chʻopʻan
Publisher: Pŏpkyŏng Chʻulpʻansa
Published: 1991
Place of publication: Sŏul-si
Language: kor
Number of pages: 168
Subjects: Industrial productivity
Other titles: Saengsansŏng hyŏksin chŏllyak.