Sŏ, Chŏng-min (Researcher in economics)

• P'osŭt'ŭ kyot'o ch'ejeha esŏ Han'guk ŭi taeŭng chŏllyak
• Sin'gihu pyŏnhwa ch'ejeha esŏ Han'guk ŭi taeŭng chŏllyak