Journal of the Korean Professional Engineers Association (기술사)
- Volume 34 Issue 3
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- Pages.52-56
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- 2001
On the Reflection of $20^{th}$ and Observation of $21^{st}$ at Science & technology(II)
과학기술의 20세기 회고(回顧)와 21 세기의 전망(II)
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