Cho, Sŏng-ik (Researcher of economics)

• Kyŏrhap harin ŭro inhan sobija chŏnhwan piyong yŏn'gu
• Yut'ong kiŏp ŭi kagyŏk sŏlchŏng nŭngnyŏk kwa chŏnja sanggŏrae ŭi hyokwa