Chŏng-un Kim

1962

• Kakkŭm ŭn kyŏkhage oerowŏya handa
• Na nŭn anae waŭi kyŏrhon ŭl huhoe handa
• Namja ŭi mulgŏn
• Padatga chakŏpsil esŏnŭn chŏnhyŏ tarŭn sigan i hŭrŭnda
• 휴 테크 성공학